What is the percentage decrease of 3 hours to 1/2 hours

Im new at this kind of math

Two distinct integers, $x$ and $y$, are randomly chosen from the set $/{1,2,3,4,5,6,7,8,9,10/}$. What is the probability that $xy-x-y$ is even?

Andrea has been asked to move several boxes of packing peanuts from the main office to the store room. She will have to carry each box. The boxes do not weigh much but they measure 4' x 4' x 4'. Does Andrea need assistance?

How do you find the sum of interior angles?

Create a stem-and-leaf plot for the data set. Enter rows of numbers corresponding to the stems and leaves. 77, 81, 85, 88, 89, 90, 92, 95, 97, 100, 100

What are the x-intercepts of the quadratic function f (x) = x^2+6x-16 Question 3 options: 8 only -8 only -2 and 8 -8 and 2

A regulation-size women's basketball has a diameter of 9.07 inches. What is the surface area of the basketball? Use 3.14 for π and round to the nearest tenth. Enter your answer in the box.

Maddy's fourth grade class is going on 5 field trips. Each has a fee of $12.10. Sack lunches for each trip are an additional $2.75. Round each amount to the nearest dollar to find an estimate for the cost of all 5 trips. A. $60 B. $65 C. $70 D. $75

What is another equivalent expression for 4 (5 + x)

An aluminum can has a capacity of 2.32 L. How many milliliters of soup can it hold? (1 L = 1,000 mL)

A regular polygon is always convex. False True