A local shop sells ham sandwiches at £1.90 each, egg sandwiches at £1.02 each and salad sandwiches at 98p each.

If the number of these sandwiches bought are H, E and S respectively, the expression describing the total cost is:

If an office junior buys 6 ham sandwiches, 10 egg sandwiches and 3 salad sandwiches for her colleagues the total bill is:

Simplify: 3a + b + 2a – 4b + 2a + 4ab + 3a2 + ab

Simplify 7x2 – 3y – 4y2 – 4x + 2x2 + y2 + 6y

34 – 23 + 42 + 50 =

42 × 23 + 12 =

4a3 × 2a5 =

(4a3)3 × 2(a5)2 =

4a3 / 2a5 =

(33 × 45) / (42 × 23) =

(x4y3) / (x2y6) =

(a3b5)2 / (ab2)3 =

271/3 =

x4 × x3 / x7 =

3√(a6b9) =

4√(x2y3)2 =

42(23 + 32 + 40) =

a2(3a + 4b + 2a) =

(x + 2)(x + 4) =

(3x + 2)2 =

2x2(3x + 4y – 2x + 6y -7x3 + 2y2) =

(2x – 4)[(3x + y) – 2(x – 2y)] =

5-2 + 52 + 91/2 – 25

Suppose your present salary is £S per annum and you expect to get a rise of 10% per year. What would you expect to be earning in 8 years?

If you are earning £50 000 p.a. now what would you expect to be earning at x% rise p.a. in 8 years?

You own shares in two companies ABC plc and XYZ plc. ABC shares are worth £3.35 and XYZ shares are worth £123.00 at present. Both will rise in value in step with the FTSE index which is expected to rise by 8% in the next year.

If you are earning £50 000 p.a. now what would you expect to be earning at x% in n years?

If you own 50 shares in ABC plc and 100 shares in XYZ plc, what will your shares be worth at the end of next year, assuming 8% rise?

If you own b shares in ABC and y shares in XYZ , what will your shares be worth at the end of next year, assuming 8% rise?

If you own b shares in ABC valued at £A per share and y shares in XYZ valued at £X per share, what will your shares be worth at the end of next year, assuming 8% rise?

If you own b shares in ABC valued at £A per share and y shares in XYZ valued at £X per share, what will your shares be worth at the end of next year, assuming r% rate of increase?