Can someone me with 2 questions number 5 and 6 plz i need fast . i will really appreciated

Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!

Name a brittle metal , which is used to galvanize iron