Nine more than a number is eleven

The function f (x) = 30 (1.4) x gives the number of bacteria in a science experiment, where x is the number of days after the start of the experiment. To the nearest whole number, how many bacteria will there be after 4 days?

A gallon contains 8 pints. Each pints contains 2 cups. How many cups are in 10 gallons?

A circular cover to a swimming pool has a diameter that is 1.8 times the diameter of the cover to a hot tub.

What is the product of 3x (x + 4) cOf

Square root of a^6 * b^3 / 98 simplified

What is y - 5 (2 - y) = 8

A baby gains 11 pounds in its first year of life. The baby gained 4 1/4 pounds during the first four months and 3 1/2pounds in its second four months. How much did the baby gain in the last four months?

Y=3x+5 what does the y intercept tells about this equation?

Factor 10y^2 - 23y + 12

A textbook store sold a combined total of 440 physics and sociology textbooks in a week. The number of sociology textbooks sold was 54 less than the number of physics textbooks sold. How many textbooks of each type were sold?