Find the percent change from the first value to the second.
20;30
The change is (select)

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.