Julie is a math tutor. she charges each student $210 for the first 7 hours of tutoring and $20 for each additional hour.
when the number of hours (h) that julie spends tutoring a student is greater than 7 (h > 7), the equation that gives the amount (a) that julie earns in dollars is . if julie earns $410 tutoring one student, the total number of hours she spent tutoring the student is .
amount a.
a=210+20(h+7)
a=210+20(h-7)
a=-210+20(h-7)
a=210+(h-7)/20
total number.
38
19
17
12