If you and 4 go to buy a drone and you find that it will cost you each $30. how many friends would you need to have with you if you wanted to get that cost down to $20/person or less.

Twenty-five percent of the customers entering a grocery store between 5 p. m. and 7 p. m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

Solve the equation. 2x - 8(x+1)= 6(2x - 3)