How do you get the numbers: 7,6,5, and 3 to equal 75. only using eachnumber once? ? ,

Are carpet coast $15 per square metre. the total delivery charge is $21 peter buys n squared metres of carpet what is the expression which represents the total cost in $

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

Ineed to know how to write question one in mathematical terms