There are 28 black marbles. This is four more than twice the number of red marbles. How many red marbles are there?

What is the answer to X 5=7

Explain how you would find the number of ounces in 0.25 tons

Which of the following equations have no solutions? Choose all answers that apply: Choose all answers that apply: (Choice A) A 29x+29=29x-1129x+29=29x-1129, x, plus, 29, equals, 29, x, minus, 11 (Choice B) B 29x+92=29x-1129x+92=

Jorge needs to ship a thin metal rod to a metalworking shop. The only boxes available for shipping are 7-inch cubes. To the nearest inch, what is the length of the longest metal rod that can be sent? 11 inches 12 inches 13 inches 14 inches

Steve is buying apples for the fifth grade. Each bag holds 12 apples. If there are 75 students in total, how many bags of apples will Steve need to buy if he wants to give one apple to each student

The fee for renting a video camera is $25 plus $15 per day. Sam can spend no more than $85. What is the maximum number of days Sam can rent the video camera

What is the square root of 90 to the nearest tenth

Students in a dance class filled out a survey. There were 25 girls and some boys who participated in the survey. The results showed that 20% of the students prefer tap dance to ballroom dance. There are 9 students who prefer tap dance.

Find the derivative of f (x) = 8x^2 + 11x at x = 7

What id 0.27%as a decimal