7k+4l=20 and - 8k+2l=10

What is the value of k?

Sea level is considered to be 0 feet. A probe released at sea level dropped at a constant rate for 3.25 minutes, reaching an elevation of - 35.75 feet relative to sea level.

An assistant recieved a 3% raise bringing the salary to 43,989 what was the salary defore the raise? (round to the nearest dollar)

Which decimal is greater than 24.07 and less than 24.075

Circle the ways to write the number shown by the model 4 tens 6ones 40+6 64 6 tens 4 ones 60+4ones 46

Page Juan is on the swim team. Each week he swims a total of 4,000 meters. How many kilometers does he swim each week?

How do you solve an inequality

A bag contains 10 red marbles 15 green marbles and 15 blue marbles what is the probability that its a red marble

7.3 is what percent of 139?

There are 2 pieces of licorese and 3 people how do u get every one a equal amount

The length of a rectangle is 3 yd longer than its width. if the perimeter of the rectangle is 50 yd, find its length and width.