2x+21=4x+21-2x is solution or no

What is another term for geometry

Which statement are about rght about rhhombus 1. all four triangle are right angled 2. all four traingle are isoceles 3. all four traingle is congruent 4.

What is the greatest common factor of 250, 45, and 30?

How do you factor k squared - 2k-3

Carlos is 8 years older than his sister Maria. Four years ago Maria was two thirds as old as Carlos. How old are they now

What is the square root of 61

William buys 4 chocolate bars and each bar weighs 1/4 pound. Mary buys 2 chocolate bars and each one weighs 1/2 pound. william claims that the chocolate weighs the same amount. mary disagrees. who is correct.

Amanda uses the recipe shown to make punch for a family party: 7 parts mixed fruit 2 parts lemonade How much lemonade will she need to make 180 fluid ounces of punch? a. 140 fluid ounces b. 40 fluid ounces c. 36 fluid ounces d. 60 fluid ounces

Are 8x and 2x to the second power like terms?

Bob's bill for dinner at a restaurant is $37.80. If he wants to leave a 15% tip, which best represents a reasonable amount for the tip?