A gas tank consists of a cylinder with a hemisphere on top. It's made of metal that is 1cm thick. It has an overall height of 90cm and an external diameter of 20cm. Calculate
a) the surface area of the tank
b) the internal volume of the tank

Pls show full working out ty

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

Darian wants to build a regulation size pool table that is 9 feet in length.he plans he ordered are 18 by 36 inches. what is the scale factor of the dilation he must use to build a regulation pool table

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!