Coronavirus spreads very fast in a stadium. After 3 minutes in a full stadium, there was 66 people infected. After 9 minutes, there is 138 people infected. Write a linear function that models the number of people infected after x minutes.

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

What is the binomial expansion of (2x-3)^5