Zach and his friends had a movie marathon on saturday. every movie they watched was 2 hours long. seven hours into their movie marathon, zach and his friends had watched 3 1/2 movies. write an equation in standard form that expresses the number of movies they watched, y, as a function of the number of hours they spent watching movies, x.

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

If chord ab is congruent to chord cd, then what must be true about ef and eg?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?