X + (2x+15) = 90 how to solve this math equation

What is the product of 1 1/3 and 5/6

The quotient of m and 7

15. (4/7y^5) ^2 a) 8/14y^10 b) 16/49y^25 c) 16/49y^10 d) 8/14y^25

Multiply. 38⋅45 Express your answer in simplest form.

Andre wants to make an open box by cutting out corners of a 22 inch by 28 inch poster board and then folding up the sides. The volume V (x) in cubic inches of the open top box is a function of the side length x in inches of the square cutouts.

Rewrite the product as a power ... a^7*y^7

Give the algebraic expression (answer if your smart) 1. number of hours in d days 2. number of hours in m minutes 3. The number if days in y years 4. the cost of x liters of gasoline if 1 liter is ₱ 50.

It costs a family $216 to have a 9 ft-by-12 ft wooden floor refinished. At that rate, how much would it cost them to have a 12 ft-by-16 ft wooden floor refinished? A) 2,592 B) 384 C) 288

Complete the following statement. ___/12 = - 6

if the number of neutrons in an atom are different than the most commonly occurring isotope then this would change the (blank) of the atom. this atom is called a (blank)