You need to order 4 plastic cups for each of the 800 runners. plastic cups are sold in 2 different pack sizes and you must choose one type of pack only. a pack of 500 cost £12.50 and a pack of 800 costs £23.20. what is the least amount of money it will cost to provide 4 cups to each runner?

f(x) = y

f(-3) = -5

step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!