Please helppp like rn:( thank you

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

The table shows the distance traveled over time while traveling at a constant speed.

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