Please help! Will give brianliest!

We must first determine the shape of a rectangular prisms _ a0 to find area of the prism

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*