Which pair of expressions is equivalent for any variable value greater than zero? ] a. 4(x+3) and 4x+3
b. 5d+3e and 8d+e
c. r+r+r+k and 3rk
d. a+a+4s and 2a+4s

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

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?