Sara worked 24 hours last week. Joan worked 4 hours less than Sara, and Erin worked half as many hours as Joan. How many hours did Sara, Joan, and Erin work last week?

Doughnuts are sold in bags and cartons. A bag hold 4 doughnuts and a carton hold 10 doughnuts. Tom buys B bags of doughnuts and C carton of doughnuts. He buys a total of T doughnuts. Write down a formula for T in terms of B and C

F (x) = 2x^2+5 on [2, b]

A 10 ft chain weighs 45 lb and hangs from a ceiling. Find the work done (in ft-lb) in lifting the lower end of the chain to the ceiling so that it's level with the upper end. ft-lb.

Define f (1) in a way that extends f (s) = (s^3-1) / (s^2-1) to be continuous at s=1. Show step-by-step solution.

An arrow is shot at a square target with sides 100 cm long. The probability of hitting a circle with a 25 cm radius is equal to 2.0%.

Evaluate: - (-1) + (-7) + (2) - (-4) - (-2) A) - 2 B) 0 C) 1 D) 2'

How to convert 18 gallons/1 hour to cups and minutes

A whitewater raft has a capacity of 10 plus the crew. The raft company has found that 60% of those with reservations show up, so they take up to 12 reservations. What is the probability that 10 people show up?

What 2 numbers add up to 23 and multiply to - 126

True or False: For the depreciation formula, A = C (1 - r) t, the A value will always be greater than the C value.