Does the equation 2x-4y=0 represent a direct variation

Y - 6 = - 1/2 (x - 2)

Nico bought a bag of jelly beans. He ate 15 jelly beans and then gave one-third of the remaining jelly beans to his brother. If he gave 25 jelly beans to his brother, how many jelly beans, j, were in the bag that Nico bought?

Solve equation 1/5 (a+10) = - 3

34 : [ (7.2 * 0.8) 3.24]

How much would you need to invest to get $20,000 in 5 years at an annual interest rate of 8.5% compounded monthly?

B) what percentage of men are shorter than 6 feet 3 inches? round to nearest tenth of a percent.

I need to find an equation of the line that passes through (3,4) and is perpendicular to y = 3x-7. What is the equation of the line? how did you get the answer? this is algebra.

Is every linear equation a linear function? yes or no? explain

The width of a rectangular room is 60% of its length. The length of the room is 10 feet. What is the area of the room?

Which represents the polynomial written in standard form? 4m - 2m4 - 6m2 + 9