Patrick spent the day at the mall. First, he bought six clocks for $15 each. Later, he found a five dollar bill. After that, he bought one mule for $10. Also, he returned four clocks. Write the total change to Patrick’s funds as an integer.

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.