Is this chart proportional. Yes or No. Why?

(1,40), (2,50), (4,70), (7,80)

Whats the formula for area for a rectangular prism

Jana hit a golf ball with an initial velocity of 102 feet per second at an angle of 67° with the horizontal. After 2 seconds, how far has the ball traveled horizontally?

Solve the system by substitution. -x+8y=20 x=y+8

How do you solve 38+7k=8 (k+4)

Elton opened a compound interest savings account with $5500 in principal and an interest rate of 2.8%. If interest is compounded quarterly, how much is in the account after 4 years? interest compounded quarterly: A = P (1 + r/4) 4t A. $6149.42 B.

A triangular road sign has a height of 3 feet and a base of 2.5 feet. How much larger in area is this sign than one with a height of 2.5 feet and a base of 3 feet

The volume of a cylinder of radius r and height h is given by V = pi r^2 h. Then the height, in terms of the radius and volume, is given by:

Negative plus positive=?

What expression is equal to the expressions 4x-2 (3x-9)

Brady rode his bike 70 miles in 4 hours. He rode at an average of 17 mph for t hours and at an average rate of speed of 22 mph for rest of the time.