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.

5. Which of the following equations represents a horizontal line? a. y = x b. x=5 y=-12 d. y=-x + 1

Every time Kelsey orders Chinese food, she gets egg drop soup. So, she decides to learn how to make it herself. Her recipe calls for 8 cups of broth, but she can only find 32-fluid-ounce cartons at the store. How many cartons should she buy?

These are numbers that cannot be written as fractions, numbers with decimals that do not end or repeat.

If y varies inversely as x, and y = 10 when x = 20, find x when y = 16.

The area of a rectangular field is 2c3 - c2 6 square units. if the length of the field is c - 2 units, what is its width

Devon purchased a new car valued at $16,000 that depreciated continuously at a rate of 35%. It's current value is $2,000.

Marty buys a bicycle for$350 reduced from $402,50 what is her percentage saving

An unknown number y is 12 more than an unknown number x. The number y is also x less than 17. The equations to find x and y are shown below. y = x + 12 y = - x + 17 Which of the following statements is a correct step to find x and y?

What two numbers multiply to - 216 and add to get 6

3X squared equals 108