Stefan is three years younger than his sister katie. The sum of Stefans age three years ago and 2/3 of katies age at that time is 12. How old is Katie now. Show your work

There are 20000 members of the zoo the percent of members having each membership type is shown in the circle graph how many members have a contributor membership what percentage of the non-contributing memberships? round to the nesrest percent

What is the standard form for 300,000 90,000 600 50 4

X^2 - 6 = - 2x Find the solution by completing the square

What number is 13 more than 80

Which expression represents the volume, in cubic units, of the composite figure? (8) (6) (6) + (8) (6) (4) (8) (6) (10) + (8) (6) (4) (8) (6) (4) - (8) (6) (6) (8) (6) (4) - (8) (6) (10)

What is the value of x in the equation 4 (2x + 14) = 0? a 9 b 7 c - 7 d - 9

At an amusement park, 25 riders ride the race cars every 30 minutes and 20 riders ride the spinning swings every 20 minutes. Which ride will have more riders each hour and how many more?

On a number line, the distance from zero to - 12 is 12 units. Which equation demonstrates this concept? A. 122 = 144 B. |-12| = - 12 C. |-12| = 12 D. 0 + 12 = 12

The price of a new car is 42,500 if the sales tax rate is 13/200 then how much sales tax is being charged what is the total cost for the car including tax

7. You go out to dinner and the bill is $40 and you want to leave the server a 15% tip. How much of a tip are you going leave?