Find the sum. −12(7z+4)+15(5z−15)
-5/2 z -5

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

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?

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]