Question

please solve the questions i marked with yellow and....GET 15 BRAINLY POINTS!!!!!!!!!!!!!!any cuss or inconvenience will be reported right away on spot AND WILL BE IN TROUBLE!!!!!!!!!!!! right answer shall be marked BRAINLIEST!!!!!!!! PLEASE PLEASE PLEASE HELP!!!!! I REALLY NEED IT FAST!!!!!!!!!!!​

Answer 1

3)surface area of cube =6a^2(6a square)

600=6(x)

600÷6=x

100=x^2

×=10