What is the variable of 2n - 3=7

What is the slope of a line that is perpendicular to the line y = 8x + 5?

Kelly wants to buy a magazine that is $25 later the magazine was marked up an additional 20% what is the new price?

Multiply: 2 4/5 x - 5 2/3

A. f (x) = ~2x+4 what is the answer to f (x) = -2x+4

While testing new vaccine a lab technician noticed that the number of bacteria reduce by half every minute how long does it take for 3000 material to reduce to 375

An elf, a dwarf, a hobbit, a wizard, and a man are sitting in a line. How many different ways can they sit if the elf and the dwarf insist on sitting next to each other?

Angie bought 10 paper tablecloths for $0.99 each, 4 packages of paper plates for $2.59 each, 1 case of plastic utensils for $10.99, and 5 packages of napkins for $2.20 each. If the sales tax is 7.25%, how much did Angie spend altogether?

SAmuel is covering a square part of his yard with bricks the square part has a length of 10 feet how many square feet of his yard will Samuel cover with bricks

Mrs. Perez is buying a refrigerator for $1368.25, which includes taxes and delivery charges. She pays $497.80 in cash and will write a check for the balance. For how much should she write the check?

What are the prime factors of 99?