DOING A TEST PLEASE ANNWER FAST An astronomer wrote the distances from Earth to two different stars in scientific notation.

About how many times farther from Earth is star B than star A?

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

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply