How to find the unit rate

Find the difference:7 7/8 - 3 1/4

Suppose a couple plans to have 4 children and the probability of a boy is 0.50. find the probability that the couple has at least one girl.

The mean age of 5 people in a room is 37 years. A person enters the room. The mean age is now 38. What is the age of the person who entered the room? my hegarty work lol im 2 lazy 2 answer

Carlos was tracking the increasing number of people walking down the street. At 6 a. m., there were 57 people. At 8 a. m., there were 65 people.

Each child in a class needs 5 exercise books and 4 pencils. If there are 30 children, how many exercise books and pencils are needed? Exercise books= Pencils=

25 more than 50 as an expression

Write two linear expressions with a sum of - 5x+4

a cd player that regularly sells for 240 is on sale at 40 % discount how much will Mariah save off the price if she buys the CD player at the at the discount price

What is the solution of the inequality 54 < x + 37?

The price of an item has been reduced by 75%. The original price was 35