Which sequences are geometric - 1,2.5,-6.25,15.625 or - 2.7,-9,-30,-100 or 8,.8,.08,.008

Ling wants to save $87 for tickets. If she has $23 now and will save $4 per week, how long will it take her to get enough money to buy the tickets?

How to solve this equation 2xsquare-4x-6=0

So solve for all values of x by factoring. X^ + 10x + 21=0

Juan has 18 posters. Ten of those posters show athletes. what is a ratio of the number of posters that show athletes to the total number of posters?

Solve each equation. 1. 5/2 * X=1 2. X * 7/3=1 3. 1 : 11/2=X

Veronica wants to make six servings of oatmeal to feed her family. She needs 1 2 cup of oats for each serving. She has 2 cups of oats.

The number line is a graph of ... a. real numbers b. integers c. rational numbers

Corina multiplied 62 x 22 and found a product of 1,042. is Corina's answer reasonable? Explain.

According to data obtained from the national weather service 166 of the 400 people killed by lightning were men. assume that this trend holds for the future. what is the probability that a person killed by lightning is a woman?

The range of the function f (k) = k2 + 2k + 1 is {25, 64}. What is the function's domain? {5, 8} {-5, - 8} {3, 8} {4, 7} {4, 8}