Solve the following system using substitution

x + y = 5

x + y = - 3

a. (2,3)

b. (3,2)

c. infinitely many solutions

d. no solutions

Water polo teams have groups of 7 people. 90 people signed up to play. How many teams will there be?

At a simple annual interest rate of 4.5%, how many years will it take Sam to earn $135 interest on an original deposit of $1,000?

Each time a component is tested, the trial is a success (S) or failure (F). Suppose the component is tested repeatedly until a success occurs on three consecutive trials. Let Y denote the number of trials necessary to achieve this.

Write 2.467 as a percent. a. 0.02467% b. 246.7% c. 24.67% d. 2,467%

What is the graph used for

Robert had 7 more cavities than I had type an expression using x as the variable

Alvin had two jobs last year, and he received two W-2 forms. On the first W-2 form, the figure in box 1 was $14,389.26, while on the second W-2 form, the figure in box 1 was $9397.18. What was Alvin's gross income from the two jobs last year

A-2=3/4 solve following equation for a.

What is the greatest common factor of 4?

What is the approximate area of a 70 decree sector of a circle with a radius of 8 inches