Question Help How much water must be evaporated from 20 ounces of a 1% salt solution to make a 5%
salt solution?

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

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

How many $20 bills do you need to have to make $280