Evaluate a2+ab-b2+5 when a=2 and b=3

Darren works 40 hours a week at a construction and $24.00 an hour. Calculate Darren's take - home pay if $247 is withheld for taxes and insurance? (A) state a math expression that represents this problem. (B) what is Darren's take home pay?

The students in Darnel's grade voted to select a guest speaker. 20 students voted for a famous athlete. If there are 100 students in Darnel's grade, what percentage of the students voted for the athlete?

I am thinking a number. If you divide my number by 3 and add - 3, you will get 4. What is my number?

The triangle has two lengths that measure 10 feet and 7 feet. Each side has a whole number length. What is the greatest perimeter it can have? A) 15 feet B) 24 feet C) 33 feet D) 55 feet

At a discount furniture store, chris offered a salesperson $600 for a couch and a chair that offer includes the 8% sales tax if the salessperson accepts the offer what would would be the price of the furniture to the nearest dollar before tax

7 meters/20 minutes = x cm/2 hours

Simplify the rational expressions. State any excluded values. Show your work. (3x - 6) / (x - 2)

A cylindrical bucket 14 cm in radius is filled with water to some height od a rectangular solid size 28cm * 11cm * 10cm is immersed in water find the height by which water rises in the bucket

What the square root of 98

Is rhombus a rectangle