Solve each linear equation by subsitution or elimination

4x-y=-1

2x+y=7

1. In 2005, there were 100 rabbits in Polygon Park. The population increased by 11% each year. a. Write an exponential growth function that represents the population t years after 2005

The annual interest rate on a loan is 12% which can be represented using the expression 1.12t. Write an expression that represents the 6 month interest rate. A) 1.058t B) 1.0582t C) 1.119t D) 1.1192t

John wants to buy a new game for his computer. He can save $12 a week if he mows his neighbor's lawn and $10 a week if he babysits his nephew. How many weeks will it take John to save enough money to buy the computer game?

A planta Heights is 1.4 times its age. Write an equation for this situación.

Part 1: Mr. Nicholson accepts a job that pays an annual salary of $60,000. In his employment contract, he is given the option of choosing a) an annual raise of $3,500 or b) an annual raise of 5% of his current salary. Procedures: 1.

Which algebraic expression is a difference with two terms? A. 5y - 7 B. 5 (y - 6) C. 3y + 1 D.-2y + 5 + 3

You are moving from Winston-Salem to Seattle a trip of about 2000 miles. Your stuff will fill half of the truck and trailer shown below. The moving company estimates that your belongings average 6.5 lbs per cubic foot.

If 25students took an exam and 4 of them failed, what percnt of them passed?

98, 78, 84, 75, 91 What is the mean absolute deviation of his scores?

Write the sum as a mixed number with the fractional part less for 3 3/4 + 1 2/4