Marcus and some friends want to buy fruit smoothies. The boys go to the shop that advertises a sale of 2 fruit smoothies for $5. Suppose Marcus and his friends but 8 smoothies.

$20

Step-by-step explanation:

Given

Price of 2 smoothies = $5

We are to calculate the price of 8smoothies, say;

8 smoothies = $x

Divide both equations

2/8 = 5/x

Cross multiply

2x = 8×5

2x = 40

x = 20

Hence the price of 8 smoothies is $20

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

4 + 5 7/9= 9 7/9

step-by-step explanation: