Six notebooks cost 720- Find
the cost of 5 notebooks

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

Simply 8x squared + 5(7x squared- x) - 2x =

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9