Can someone me ? this is a self checking sheet, so you have to get all of them right to get the last one

Why do interests rates on loans to be lower in a weak economy than in a strong one

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

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?