For a triangle DEF classified as equilateral, which statement must be true?

a. At least two sides are congruent.

b. Two sides are perpendicular.

c. All three sides are congruent.

d. Two sides are parallel.

A cable company charged a one time installation fee and a monthly service charge. The total cost is modeled by the function y=40+90x. Describe the meaning as of each part of the function

The Fifth Grade classes are going on a field trip. Mrs. Lafont fills an ice chest with drinks. The ice chest holds 122 cubic inches. Mrs. Heather fills an ice chest with snacks. Her ice chest holds 118 cubic inches.

7.8 x 10 to the forth power divided by 8 x 10 to the 1 power

What is 9 (3n+7) in distributive property

The st. joe company grows pine trees and the average annual increase in tree diameter is 3.1 inches with a standard deviation of 0.5 inch. a random sample of n = 50 trees is collected. what is the probability of the sample mean being less the 2.

Half of - 2 3/8 as a fraction

Find all the real square roots of 0.0036

Lisa and Judy are wrapping gifts for their children. Lisa is making the bows. She has 37 and 1/3 yards of ribbon. If each bow uses 4 and 2/3 yards of ribbon, how many bows can Lisa make?

2,250 watts to horsepower (Round answer to the nearest thousandth.

10^m*10^n for m=2 and n=4