21) A frozen yogurt store sells a small bowl of frozen yogurt for $2.50 plus $0.75 per topping. They sell a large bowl of frozen yogurt for $4.00 plus $0.50 per topping. For how many toppings will a small bowl of frozen yogurt cost the same as a large bowl of frozen yogurt? ​

Two toppings and a small bowl of frozen yogurt will cost the same as a large bowl of frozen yogurt.

Step-by-step explanation:

2.50 + .75x = 4.00

4.00 - 2.50 = 1.50

1.50/.75 = 2

2 toppings

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

i dont have an answer

step-by-step explanation: