Simplify the expression. 3. 3(5-2n)+9n

Find the sum or difference.
5. (3j+11)+(8j-7)
6. 3/4(Three-fourths)(8p+12)+3/8(three -eighths)(16p-8)
7. (2r-13)-(-6r+4)
8. -2.5(2s-5)-3(4.5s-5.2)

Solve the equation(Find the unknown variable). Check your solution.
13. 2/9(Two-ninths)g= -8
16. 2/7(Two-sevenths)k-3/8(Three-eighth s)= -19/8

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

Iam stuck on one problem. my mind is in absoloute vacation mode. i literallty just need to finish this to be done will give brainliest and all my points if i have to! 1- point free throw and 2- point feild goal. he made 35 shots, and scored 62 points how many of each shot did he make in 1 minute? (i already did the math. he made 8 1-point free throws and 27 2-point feild goals.) 1. write two equations for the problem. (i had a major brain fart.)

The constitution gives congress the power to create federal courts lower than the supreme court higher than the supreme court equal to the supreme court, unaffected by the supreme court.