What must be true about the denominator before you can add or subtract rational

expressions?

Dana spent 17 hours studying last week. She spent 9 hours studying for Language Arts and the rest of the time she spent studying for Spanish. What percent of the total time did she use to study Spanish? % Round to the nearest whole number.

Is 3x+2y=6 and y=-3/2x+5 is parallel perpendicular or neither

2 x t 5 y = 10 (solve for y)

How many centemerters are in 5 inches

Convert 53 grams to kilograms. 530 kg 53,000 kg 0.053 kg 5.3 kg

Ron walk 0.5 mile on the track in 10 minutes Stevie walk 0.25 miles on the track in six minutes find the unit rate for each walker in miles per hour who is a fast walker

Construct your own division problem with 2 divisor that has a quotient of 6 and a remainder of 12 but is not equivalent to 156 divided by 24 and also 102 divided 15

Solve: (6x^3 - 1x^2 + 1) divided by (2x + 1) a. - 3x^2 + 2x - 1 b. 3x^2 - 2x + 1 c. - 3x^2 + 2x - 1 d. 3x^2 2x - 1

113, 183, 479, 120, 117 What is the mean, median and mode? Make sure to label each answer. Round any decimals to the tenths place. Would mean, median or mode be the best measure to describe the data?

What is the volume of a cylinder with a height of 11.8 cm and a base with a radius of 8.3 cm, to the nearest tenth of a cubic centimeter?