(High points) please solve with explanation. Legit answers only please thank you!

Hannah is 3 years older than twice her brother joey’s age. joey is 2 years old. how old is hannah? show all of your work! the number of students is five more than seven times the number of teachers. there are 10 teachers. how many students are there? be sure to show all of your work!

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay