Write as an equation: The sides of a triangle are 7, x and (x + 1). The perimeter is 30.

A. 30 = 7 + (x+1)

B. 30 - 7 = 2x

C. 30 = 7 + 2 (x + 1)

D. 30 = 8+2x

Diana had 12 books. Then she went to a book sale and bought b more books. Choose the expression that shows how many books Diana has now.

I am confused what is 5x 5/6?

In ∆ABC, ∠BAC = 80°, ∠ABC=60°, a = 7, b = x. Find x. (accurate to 3 significant figures) The value of x =

A carbon nanotube is a thin cylinder of carbon atoms that, pound by pound, is stronger than steel and may one day be used in clothing. With a diameter of 4.0*10^-10 in., a fiber can be made 300yd long. Find the volume of such a fiber.

A contractor needs to purchase 500 bricks. the dimensions of each brick are 5.1 cm by 10.2 by 20.3 cm, and the density of each brick is 1920 kg/m^3. the maximum capacity of the contractor's trailer is 900 kg.

The coach of a women's basketball team wants each of her starting players to make at least 75% of the free throws attempted during regular season games. The table shows the statistics fr the starting players after the first 15 games.

Principal = $450 rate = 5% time = 4 years simple interest = compound interest =

The lengths of the sides of a square are multiplied by 2.5. how is the ratio of the areas related to the ratio of the sides?

If a restaurant bill totals $85, what amount should be left as 15% tip A.$97.75 B.$11.90 C.$12.25 D.$12.75

Troy and Abed flip a penny, a nickel, dime, and a quarter at the same time. How many outcomes art possible.