<span>the total number of sit ups = 7(60 + 5)
= 7 * 60 + 7 * 5
= 420 + 35
= 455
Hope it helps</span>
First find the sum of the amount of time it takes her to be finished
20 + 35 + 15 =
35 + 35 = 70
Keep in mind a hour is 60 minutes
1:10 minutes before 8:00
She should get up at 6:50am
B since you can rewrite it as (2x+7)(x-4)=0 and you can solve it and you get B