The Williams' family has a goal to save $690 for their family vacation. The trip is 5 weeks away. How much money per week should the Williams' family save to reach their goal?

Ineed i do not understand i'm only 8

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

Olivia is using 160 quilt squares to make a red, yellow, and blue quilt if 25% of the quilt are red and 30% are yellow how many quilt squares are blue