Simplify the expression 6ab + 3ab - 7ab. What is the coefficient of the simplified expression?

A. a

B. ab

C. 2

D. b

Write a fraction that is greater than 1/3 and is less than 1/2.

At the end of the year, cars made in the current year are marked down to make room for next year's models. One particular model had a sticker price of $49,180 when it was new. It has just been marked down by 25%.

3 friends share 12 crayons. Which model shows a way to share the crayons so that each friend gets an equal number of crayons?

Find the percent of markup. 37.00 to 49.00

3.2*8.7*-1.1 show work

Joann wants to hang a wallpaper border around the top of her living room walls. The room is 13 ft. by 15 ft. How much border must she purchase?

A zealous geologist is sponsoring a contest in which entrants have to guess the age of a shiny rock. He offers these clues: the age of the rock is formed from the six digits 2, 2, 2, 3, 7, and 9, and the rock's age begins with an odd digit.

Which is greater: 25% of 15 or 15% of 25? Explain your reasoning using algerbreaic representations or visual models

The standard form of the equation of a parabola is y = 2x^2 16x 17. what is the vertex form of the equation?

A test consists of 30 problems and students are told to answer any 10 of these questions. In how many different ways can they choose the 10 questions?