The diagram shows a wall in Vicky's living room (2.8m height),(5.7m length) each roll of wallpaper is 53cm wide and 12m long the cost of one roll of is £12.45.

the answer to the expression is 83

step-by-step explanation:

c = 0.429t

step-by-step explanation:

the constant rate at which carlos harvests cassava is 35 minutes per 15 cassavas 15/35 = 0.429 cassava per minute

therefore, an equation that models the number of cassava (c) that harvest carlos in a time (t) is the following:

where t is the time in minutes.

this means that when 35 minutes have elapsed 15 cassava have been harvested, at 70 minutes 30 cassava have been harvested and so on.

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