an electrician charges $90 to identify a problem and $85 per hour to fix a problem. Write an equation to express the relationship

Which number produces a rationale number when multiplied by 1/5

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?

Darragh has a golden eagle coin in his collection with a mass of 13.551\,\text{g}13.551g. an uncirculated golden eagle coin has a mass of 13.714\,\text{g}13.714g.