What number should be added to the expression x2 + 4x to change it into a perfect square trinomial?

A standard coin with heads and tails is tossed 14 times. a. how many different outcomes are possible?

Hamdi lives 452 miles from her grand-parents. She lives 135 miles from her cousins. How much further away are her grandparents than her cousins?

Suppose you travel at 70mph for 420 miles. How many hours will it take you to reach your destination? A) 5.4 hours B) 6.5 hours C) 5.3 hours D) 6.0 hours

Sharon spent $3.45 on sunflower seeds the price of sunflower seeds is $0.89 per pound how many pounds of sunflower seeds does Sharon buy

Jane currently has $3,360. In her savings account. prior to get paid, she had $1,230 in her savings account. hiw much was James paycheck?

What is the mean for 0, 1,2,3

A phone company has a monthly cellular data plan where a customer pays a flat monthly fee and then a certain amount of money per megabyte (MB) of data used on the phone. If a customer uses 80 MB, the monthly cost will be $19.00.

Edith babysits for x hours a week after school at a job that pays $4 an hour. She has accepted a job that pays $8 an hour as a library assistant working y hours a week. She will work both jobs.

Rhea is a freelance writer. She works for multiple clients and has several sources of income. Some of her clients pay her more than $600 for her work. These clients always send a specific form to her where she has to report her gross payments.

An automobile dealer agrees to discount the $10,288 sticker price of a new car by 5% for a customer. What is the price of the car for the customer?