Petra is given the equation (x + 15) ^2 + (y+4) ^2 = 100 and identifies it's graph as a circle whose center is (-15,4) and radius is 10. Has Petra made a mistake? Explain.

Is 28g eguivalent to 4g (3g+4g)

You have 12 balloons to blow up for a party. You blow up 1/3 of them, and your friend blows up 5 of them. What fraction of the balloons still need blowing up?

What are the x-intercepts of the graph of the function f (x) = x^2 + 5x - 36? (-4,0) and (9,0) (4,0) and (-9, 0) (-3,0) and (12,0) (3, 0) and (-12, 0)

Each of the 22 members of football team is required to participate in the summer car wash fundraiser the coach estimates that each member can wash 12 car wash which is the most reasonable estimate for the amount of money they will raise in one day

Six diminished by twice a number is ten

Convert 6418 kilograms to tons?

Michael drove from Orlando to Jacksonville in 6 2/3 hours. The next day he drove from Jacksonville to Savannah in 3 3/5 hours. What was Michael's total driving time from Orlando to Savannah?

You have $3000 to use for training your employees each hour of training cost $40 per employee plus a one time $200 fee how many hours of training can you purchase and how many hours of training will each of your employees received

How do you divide big numbers? like for example, 2,673 : 486?

a student was 48 inches tall in 5th grade. now, the student measures 60 inches tall on 8th grade. what is the percent increase of the studet's height