The graph below shows the number of calories in a give number of donuts. Write an equation to find the total calories.

y= 100x
y=300x
y=150x
y=600x

The lee family bought their home for $220,000 this year. the equation =220,000(1.038) v = 220 , 000 ( 1 . 038 ) x can be used to find the value, v, of their home after x years. which will be the value of the lee family's home in 5 years?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac