Find the product mentally.

(ab + 3) (ab - 3)

A: a2b2 + 9

B: a2b2 - 6ab - 9

C: a2b2 - 9

Write in if-then form: "Being 35 years old is a necessary condition for being President."

Which expression has a value of 20

A clogged bathtub drains at a constant rate. The amount of water in the bathtub changes by - 3.75 gallons in one hour. What is the change in the amount of water in the bathtub after 1/3 of an hour.

Find the slope of the line perpendicular to 7x-2y=3.

Find the polynomial function with the following roots: - 2 of multiplicity 2; and 3. SHOW WORK (DBA questions of module 4)

How to write an indirect statement that a scalene traingle cannot have two congruent midsegments

What two numbers multiply to 70 and add up to 4

on average max makes 45 shots out of 60 shots with the basketball, write an equation to represent the average number of shots made out of x attempts

A dentist polls his patients and finds that 83 percent brush their teeth at least twice a day, 47 percent floss daily, and 19 percent brush at least twice a day and floss daily.

Four balls are placed in a bowl. one green, one black and two yellow. the bowl is shaken and someone draws two balls from the bowl. he looks at the balls and announces that at least one of them is yellow.