Solve the system of linear equations by elimination

4x - y = 7

4x - 2y = 2

How do you do 9/15 and then turn it into a decimal and then a percent

The difference between two integers is 5. If the reciprocal of the smaller is added to twice the reciprocal of the larger the resulting ratio is 23/66

In January 2012, the US population was about 313 million people. In January 2017, it was about 324. What was the average rate of population change per year?

A jogger running around a rectangular park takes a shortcut back to her car by jogging from one corner of the park to the diagonally opposite corner. If the park is 33 meters by 44 meters, how far is the shortcut?

Using the rule y = 2x + 3, find the value of y when x is 3.

A die is rolled 20 times. Find the probability of getting exactly four 2's out of 20 attempts

In order for the barge operator to meet his expenses, he has to haul at least 120 tons of freight. How many railroad cars must the barge operator haul on each trip to at least break even?

What is two plus negative twenty!

Least to greatest-4 - 8 - 9 9 6

What is 8426 divided by 82 rounded to the nearest hundredth