What survey type is "An examination of 9,000 nine and 10-year-old children reveals changes in the brain’s structure among youngsters whose mothers regularly drank caffeine while pregnant." A) Simple Random Sample (SRS)

B) Stratified Random Sample

C) Systematic Sample

D) Cluster Sample

E) Convenience sample

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

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.