Which algebraic expression is equivalent to this expression? 9 (5r + 12) + 10r - 19

Prove that if every two of them have a vertex in common, then "they all have a vertex in common"

Español Brian needs to memorize words on a vocabulary list for Spanish class. He has memorized 24 of the words, which is three-fourths of the list. How many words are on the list?

Subtracting 3 from the product of 6 and a number results in the number added to 52. how would i write this out

A quadrilateral has four sides identify p and q in the definition

Kaitlin spent 2/3 of an hour on homework. Her sister, Judy, spent 1 1/2 times that amount. Explain why Judy's homework time is between 2/3 of an hour and 1/2 hour.

I have a coil of steel that is 48 inches wide. The weight of the coil is 10.800 kegs. If I cut the coil a width of 0.5 inches how much will the 0.5 inch coil weigh. Can you show me an example on how to figure this problem out.

How many more years will it take Inga to pay off the loan

A large planetarium in the shape of a dome is being built. When it is complete, the base of the dome will have a circumference of 87 kilometers. What area of land was required for this planetarium?

Emily has 50 gallons of water to share between 6 different fish tanks. She puts an equal amount of water in each fish tank. What is the total amount of water, in gallons, in each tank?

Why are most personal loans much smaller than mortgages and home equity loans?