What is the value of x in the equation 2x + 9 = 21?

2

6

9

15

What is the definition of constant

How to change 258/300 into a decimal and percent

On Friday, 65% of the students at plainview Middle school bought a hot lunch and the rest of the students packed thier lunch. What fraction of students packed their lunch? Select all that apply

On the first day 60% of the 300 tickets were sold how many tickets were sold the day

Stephen buys melon and divides it into 6 servings. He eats 1/3 of the melon over the weekend. How many slices of melon does Stephen eat over the weekend?

Three friends decide that they each want to be able to buy a new bike in four years. Iliana puts $500 in a savings account with a simple interest rate of 4%. Joann invests $515 in a standard savers account with a simple interest rate of 3%.

Solve the formula for the variable h. V = Bh/3 a. h = 3v/3 b. h = V / 3B c. h = 3V + B d. h = 3V - B

Convert 3/4 into a quotient and percentage

Simplify the expression 3 (-3y+2x) combine like terms a+3a-b+4b+c

If a figure has 5 sides 5 vertices and no equal sides what is it? it is a polygon BTW