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

2 (4+n)

2 (4n)

2 (4) + n

2 + (4n)

The perimeter of a room is 88 feet. the ratio of its length to its width is 7:4. you want to tile the floor with 18 inch square tiles. find the length and width of the room, and the area of the floor.

Regina has two electronic files when I was a size of 3.15 envy and the other has a size of 4.89 Embee what is the best estimate of the total size of the two Electronic files

How many different seven-letter sequences can be formed from the letters a, a, a, a, a, b, c?

The contents of a certain box consist of 14 apples and 23 oranges. how many oranges must be removed from the box so that 70 percent of the pieces of fruit in the box will be apples?

Which value represents the horizontal translation from the graph of the parent function f (x) = x^2 to the graph of the function g (x) = (x-4) ^2+2?

In the following set, the mode is the most effective measure of central tendency if you want to emphasize how small the values are. 32, 21, 68, 21 True False

A triangle has two sides of length 17 and 2. What is the largest possible whole number length for the third side?

Delia runs 8 mi every day at her health club. She earns a free month membership after she's run 1,000 mi. How many days does she have to run before she earns the free month?

X>10 is 3 a solution

Simplify 7x^3 (2x^5) ^2