Find the product mentally.

(z - 12) (z + 12)

z2 - 144

z2 - 24z - 144

z2 + 144

How do I multiply 42 x 7.2

A random sample from the 6th and 7th grade student population was taken to determine which clubs were the most popular.

If the number n satisfies the relationship n>0 what are inequalities that represent this 1/n

You write each of the 26 letters of the alphabet on separate index cards. If you choose 2 cards at random without replacing them, what is the probability that you will not draw an A? Round your answer to three decimal places.

Simplify this expression 5a/11a

Given what is the domain in set notation? x ∈ R, x ≥ 4 x x ∈ R, x ≥ 2 x

The following list gives the coefficients for the binomial expansion of (x + y) 10. What is the value of B? 1, 10, 45, 120, 210, 252, 210, B, 45, 10, 1 A1 B10 C45 D120

7 rectangles in every 140 cm. how many rectangles will be presented in 220 cm

Which graph represents the solution set of this inequality? 9-4d≥-3

How many $10 bills are the same as ten $1 bills