Which operation will solve the equation?

m + 9 = 20

Question 2 options:

Add 9 to each side.

Subtract 9 from each side.

Add 20 to each side.

Subtract 20 from each side.

640$ in a charity last year 15% moe than last year how much did he raise

A crate contains 4 barrels of red herring. A barrel holds about 1000 herring. If each barrel weighs 320 pounds, how much do the barrels in the crate weigh in all?

George has 16 coins in his pocket. If he has both quaters and dimes. he has $2.20. how many coins each does he have?

Eighty students took and algebra test exam and 75 passed it in simplest form what fraction of students did not pass the exam

For her phone service, Yolanda pays a monthly fee of $29, and she pays an additional $0.04 per minute of use. The least she has been charged in a month is $72.36.

Eight less than a number doubled is twenty more than the number. What is the number?

What is 1 and 1/8 plus 1 and 1/4

Daniella wrote the equation shown to represent "four less than - 3.7 times a number is - 11.9." 4n - (-3.7) = 11.9 Explain her error, include the correct equation in your response.

What is the vertex of this equation? y=-x^2+10x-21 (5, 4) (1, - 9) (-4, - 2) (7, - 3)

The price, s, of a mountain bike at Speed Cycling is $290 less than twice the price, d, of the same bike at Downhill Racing. The difference in price between the bike at Speed Cycling and Downhill Racing is $304.