In a shop there are 20 customers, 10 of whom will make a purchase. if three customers are selected, one at a time, at random, what is the probability that all will make a purchase?

What is - 1 5/6 divided by - 3 1/3 as a fraction?

There are 16 ounces in one pound and 2,000 ounces in 1 ton. A white rhinoceros can weigh close 2 ton. How many ounces an 2 ton rhinoceros weigh?

The value of Maggie's car decreased by 10% since last year, when she bought it. If the car is now worth $17,000.00, how much was the car worth when she bought it? A. $20,000.00 B. $18,700.00 C. $18,888.89 D. $17,894.74

What is 1/4 + 4/8 + 4/6 = ?

Which statement is correct? 1. A horizontal line has no slope. 2. A vertical line has a slope of zero. 3. A line that rises from left to right has a positive slope. 4. A line that falls from right to left has a negative slope.

Prove 1 + cos (2 θ) 2 / cos (θ) = cos (θ) is an identity

2 inches of snow in 4 hours, what is the unit rate?

What is the solution set to the system of equations 10x+3y=43 -9x-y=-20 a.) (11,1) b.) (1,11) c.) (-1,11) d.) (11,-1)

Every three days Marco fills up his car with gas. Every eight days he washes his car. On what day will Marco go fill his car with gas and wash it?

After a new $28,000 car is driven off the lot, it begins to depreciate at a rate of 18.9% annually. Which function describes the value of the car after t years? 1) C (t) = 28,000 (0.158) ^t 2) C (t) = 28,000 (0.811) ^t 3) C (t) = 28.000 (1.