What are the values of a 1 and r of the geometric series? 1 + 3 + 9 + 27 + 81

The two-way table shows the number of books of each type in Eliza's home. What is the probability that a randomly selected reference book is hardcover? 0.25 0.4 0.6 0.75

3/10:2/5 find solution

Karissa says that to represent the expression - 7 - ( - 9) on number line, she should start at 7 and move units to the IN correct? Explain why or why not.

Write an expression that can be used to solve the problem. During practice, it took Shawn 27 min to swim 81 laps. If Shawn swam at a constant rate, how long did it take him to complete each lap? A. 27 x 81 B. 27+81 C. 81/27 D. 27/81

In ms. sanchez's class, there are 20 female students and 12 male students. which of the following expresses the ratio of female students to male students in simplest form. A) 3 to 5 B) 20/12 C) 5/3 D) 20:12

A model of a house is created by putting a square pyramid on a cube. The resulting figure has a surface area of 165 square inches. What is the height of one of the triangular faces?

Createa ratio tablefor making lemonade with juice to water ratio of 1:3 how much lemon juice would be needed if you use 36 cups of water?

Flicia has an alarm system for her home she paid $80 to have the alarm installed and pay $45.50 each month how much does she spend on the alarm system in the first year

A recipe for cookies cost for 4 1/8 cups of flour Nuttallia accidentally put in 4 2/3 cups how many extra cups does she put in

What is 1 fourth+1 fourth + 1 fourth + 1 fourth