Three sevenths of a number is 21 find the number

Student had $78 she then earn money babysitting now she has $116 how much did the student and babysitting

Suppose f (π/3) = 4 and f ' (π/3) = - 5, and let g (x) = f (x) sin (x) and h (x) = cos (x) / f (x). Find the following. g' (π/3) h' (π/3)

Assume the probability of a boy being born is the same as the probability of a girl being born. find the probability that a family with five children will have the given composition. the two oldest children are girls.

Find the first 4 terms of this equation, f (n) = f (n-1) + 5 f (1) = - 2

What is a two-dimensional Figure

If P dollars is deposited in a savings account that pays interest at a rate of r % per year compounded continuously, find the balance after t years. (Round your answer to the nearest cent.) P = 100, r = 2 1/2, t = 12

Linda bought 56 books. Linda bought 8 times as many books as Pablo. let b be the number of books pablo bought

Which equation should be used to solve 81 + * = 108

Nadia started at 19.26 feet below sea level and then changed her altitude by climbing a total of 5,437.8 feet up from her initial position. What was Nadia's altitude at the end of her climb

A toy manufacturer needs a piece of plastic in the shape of a right triangle with the longer leg 6 cm more than the shorter leg and the hypotenuse 12 cm more than the shorter leg. How long should the sides of the triangle be?