Which expression correctly represents "twice the sum of four and a number"?

Lemonade is made by mixing lemon juice and water in the ratio of 2 to 3. How many glasses of lemon juice and water are needed to make 15 glasses of lemonade? a. 3 glasses of lemon juice, 12 glasses of water b.

Each of 11 refrigerators of a certain type has been returned to a distributor because of an audible, high-pitched, oscillating noise when the refrigerators are running.

An animal shelter spends $4.50 per day to care for each bird and $6.50 per day to care for each cat. Ayden noticed that the shelter spent $183.00 caring for birds and cats on Tuesday.

What is the value of y for the linear equation, x + x = 2x - 4y + 16

Evaluate h (x) = - 2 + 9 when x = - 2, 0, and 5

If the length of the ramp will be 25 feet but the rise of the ramp will be 3.0 feet, approximately what will be the measure, in degrees, of the angle of elevation, angle A?

Is (-2) - 5 = 7? im not sure

light bulbs usually cost $2 they are on sale for 0.50 of the regular price. what is the sale price? is this a better price than if the sale price word 0.35 of the regular price?

Suppose that 10% of the general population has a disease and the test for the disease is accurate 80% of the time. What is the probability of testing postive for the disease

Sasha answered 85% of the trivia question right what fraction describes this percent