A submarine is currently at a depth of -314.9 ft three hours ago it was at a depth of -725.6 ft find the vertical change in depth traveled by the submarine

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

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

This question awards 100 ! i really don’t want to fail i will also mark you !