C = 3m + 4, A taxi charges £4 plus £3 per mile. Write a formula for the total cost C for m miles., C = 9t, A cinema ticket costs £9. Write a formula for the cost C of t tickets., T = 12n + 25, A gym charges £25 to join and £12 per month. Write a formula for the total cost T after n months., C = 18m, A phone plan costs £18 per month. Write a formula for the total cost C for m months., T = 2h − 6, The temperature starts at −6°C and rises 2°C each hour. Write a formula for the temperature T after h hours., C = 1.5h + 2, A car park charges £1.50 per hour plus a £2 entry fee. Write a formula for the total cost C for h hours., C = 5x, Each notebook costs £x. Write a formula for the cost C of 5 notebooks., T = 7m + 10, A streaming service charges £7 per month plus a £10 sign-up fee. Write a formula for the total cost T after m months., C = 3p, A packet of seeds costs £3. Write a formula for the cost C of p packets., C = 6h, A bike hire shop charges £6 per hour. Write a formula for the total cost C for h hours., C = 4b, A book costs £b. Write a formula for the cost C of 4 books., C = 5v + 12, A swimming pool charges £5 per visit plus £12 for membership. Write a formula for the total cost C for v visits., C = 11n, A train ticket costs £11. Write a formula for the cost C of n tickets., C = 8m, A takeaway charges £8 per meal. Write a formula for the total cost C for m meals., C = 20h + 15, A phone repair costs £15 plus £20 per hour. Write a formula for the total cost C for h hours., C = 30d, A car hire company charges £30 per day. Write a formula for the total cost C for d days.

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