I'm in a quiz right now!
sam needs to find the circumference of a circle with a diameter of 24 inches. he uses a calculator to find the circumference. which answer is reasonable?

a.72.013678 in

b.75.398223 in

c.80.332161 in

d.85.335372 in

What's the difference between: x≥0 and nonnegative integer. ?

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i