Solve the following system via substitution.

m = 2n + 30

2m - n = 39

Several students joined a radio-controlled model club. Some had boats, some had airplanes, and some had cars. They divided into three equal groups according to which radio-controlled model each had.

3) Follow the Order of Operations to sim a. 62 - (5 - 4) + 2 (8 - 22) - 8 What are we suppose to do

What is negative eight divided by four

Collins middle school has 186 soxth grade students. If the sixth grade is 30 percent of the total school, how many students are in the middle school?

How do you get the surface area of a prisms

82 = 2 (1-8p) step by step

Find the simple interest of $2300 invested at 7.5%for 10years

Kelly shows all the ways to make 49 as tens and ones. What ways does she show

I have done a math equation for school and i forgot if i could leave a inproper fraction as my answer or if its a fraction i can reduce should i or should i not

Is 1,2,3,6,9 and 36 a múltiple of 9?