Write and evaluate the exprssion then, select the correct answer. Ten times the sum of seven and a number

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll