What are the steps to prove z+z+z+z=4z

What times what equals = 98?

Rita has 5 friends who are available to go with her to the movies, but she only has 3 extra tickets. How many different choices does Ramona have for which 3 friends to invite?

How do i get the area in squaere centimeters of rhombus.

How do i solve an elimination, substitution, and graphing method for y=25x+35, y=5x+45

What is the distance between A (5,4) and B (2,-3)

Diane received 300 votes in the election for student council president. That was 60% of the students who voted election. How many students voted in the election?

Find two values of c in ( - π / 4, π / 4) such that f (c) is equal to the average value of f (x) = 2 cos (2x) on ( - π / 4, π / 4). Round your answers to three decimal places.

Earned at least $125 working at the mall for 13 hours last week. How many dollars per hour does Max earn? Identify the number (s) that are included in the solution set. A. 12 B. 10 C. 8 D. 9

A contractor is tiling the bottom of a round fish pond with 1-inch square tiles that cost $0.04 each. the fishpond has a diameter of 120 inches. how much will he spend on tiles?

What does the graph of an equation reveal about the solutions to the equation? How do you solve a system of equations approximately using graphs and tables?