Answer:
8 hours
Step-by-step explanation:
12/2= 6He grades 6 exams per hour48/6= 8it would take 8 hours to grade 48 examsBonus:it takes him 10 minutes to grade an exam. That doesnt matter for this question but it's good 2 know
To solve this it seems you need to set up a proportion.
12/2=48/x
cross multiply the 2 and 48.
2•48=96.
divide by the remaining number to get x.
96/12=8.
arey. buy deepa notes no need to complicate it
84
they are all equal sides so what you'd do is 28+28+28= 84
(4x - 3) (4x+ 5)
first you have to add
