Can someone me to answer this plss.. the melting point of a lead-free solder alloy is 361°f. your adjustable-temperature soldering iron is calibrated in °c. the soldering iron must be at least 100°c hotter than the solder melting point to work effectively. what is the minimum operating temperature for the soldering iron?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Which expression shows the sum of the polynomials with like terms grouped together