How to solve measurements word problems

Will (-2) ^2 and - 2^2 have the same solution? Why or why not? Honestly this whole lesson in class made no since to me lol

Three wires are 6.5 m, 8.19 m, and 4.457 m long. What is the total length of the wires? Give your answer with the appropriate precision. A. 19 m B. 19.0 m C. 19.1 m D. 19.147 m

The policy of the broadway pawnshop is to lend up to 35% of the value of the borrowers collateral. John wants to use a $3000 ring in the $1200 necklace as collateral for a loan. what is the maximum amount that he could borrow from Broadway?

A bicyclist rides the same number of miles every minute. The ratio table below shows the number of miles she rides during certain amounts of time. Biking Times and Distances Number of Minutes Number of Miles 10 2.5 16 4? 7.

How is the expression (3 + y) ⋅ 7 described by its factors and terms? It has two factors and the factor (3 + y) has one term. It has three factors and the factor (3 + y) has one term. It has two factors and the factor (3 + y) has two terms.

X^2-10x+21x2-10x+21

Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n? Ø {0} all reals

The art teacher found 3 boxes of brushes and 4 extras brushes. There were 40 brushes in all. how many brushes were in each box

Xavier and Madeline's age combined is 28. Xavier is 4 yrs older than half of Madeline's age. How old will Xavier be in 2 yrs?

Rover's cylinder dog bowl has a diameter of 6 inches and a height of 2 inches. Approximately how much water does it hold? Use 3.14 for pi and round your answer to the nearest cubic inch.