This is due tomorrow if someone could help me I would appreciate you very much. 50 points plus brainliest! This is on area and perimeter

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

3x + 4y = 5 x- 3y = -7 solve by substitution

Question 4 of 102 pointsjuliana had $96, which is eight times as much money as al had. how mucmoney did al have? select the correct solution method below, representingals money with x.