Which of the following is not a undefined term

53 is the difference of Gail's age and 18

Isaac is building a birdhouse for a class project. the bird house is a regular hexagonal pyramid. the base has side lengths of 3 inches and an area of 15 square inches. the slant height is 6 inches. find the surface area of the birdhouse

Amy had to solve 26 problems. After 3.6 hours, she had 8 problems left to solve. If she solved the same number of problems each hour, how many more hours does she need to work in order to complete the remaining problems?

In a recent election the new mayor received three votes for every vote received by her opponent. The new mayor received 2058 votes. How many votes did her opponent receive?

In this sentence, what part of speech is the word in bold? Many trees mature in about thirty years. verb noun adjective adverb

Multiply and simplify (6x-4) (4x+1)

Which of the following rational numbers is closest to - 3.5? a. - 3 4/5 b. - 3.1 c. - 3 3/8 d. - 3.85

The expression d/t can be used to find the average speed of an object that travels a distance d in time t. what is a cars average speed if it travels 145 miles in 2.5 hours

Write the number in exponential notation: 2x2x2x2x2x3x3x5x5x5 24 x 3² x 5² 2² x 34 x 52 2x3x5 23x32x5

Solve - 14 + 5x = - 12 really need this answer