Five is three more than a number n.

I don't understand this at all!

The perimeter of a scalene triangle is 14.5 cm. The longest side is twice that of the shortest side. Which equation can be used to find the side lengths if the longest side measures 6.2 cm?

If 450 candies are randomly selected find the probability that their mean weight is at least 0.8543 The probability that a sample of 450 candies will have a mean of 0.8543g or greater is?

Mrs. Millis wants to divide a 101b bag of M& Ms evenly into S bags to use for an experiment. If each bag weighs the same amount, how many pounds of M& Ms are in each bag?

Factoring a trinomial Xsqaured+6x+9

12 is 150% of what number

Write the quadratic equation whose roots are - 4 and 1, and whose leading coefficient is 4

Millie went shopping and took £60 to spend. she spent 1/2 of her money on a pair of shoes, she then spent 2/3 of what she had left on a pair of jeans. how much money did she have left at the end of her shopping trip?

Circle two addends to add first. write the sum 7,3,3

TK-119 has a 20% salt solution in it and contains 27,000 gallons. How many gallons of the solution are salt?

What is the square root of 517? And how do I show my work.