The mean of four numbers is 30. if three of the numbers are 12, 50, and 48, what is the fourth number?

A. 120

B. 10

C. 12

D. 30

The volume of a fish tank is 30 ft.³ if the Density is 0.3 how many fishes are in the tank

If susie is fourteen, what was her age x years ago?

A submarine is diving at a rate of 84 feet per minute. If the submarine begins diving from the surface of the water, what would be the submarine depth after 7 minuets?

Tan 56 degree=24/x. Find the value of x to the nearest tenth

Given g (x) = - 2x+2 and f (x) = 3x^2+4, find (g+f) (-3)

At a tailor shop, it costs $6.79 to shorten a pair of pants and $9.25 to take in a dress. Lisa brought in 3 pairs of pants to be shortened and 1 dress to be taken in. How much will she pay for the tailoring? A $16.04 B $20.37 C $27.16 D $29.62

A group of children share 11 3/7 vegetarian pizza's. each child receives 10/14 of pizza. how many children are in the group?

A stadium seats 107,282 people. Another one seats 71,706 people. How many more does the 1st stadium seat than the 2nd one?

A store sold 6 fruit trees five of the trees were apple trees what fraction of the trees were Apple trees?

5. A MP8 Mack Semi Truck Diesel Engine has the volume of 780 cubic inches Part A: Which scale model n has the greatest engine volume, a 1:8 scale model or a 1/24 scale model Part B: How much greater volume does the bigger scale model have?