What is 80+47?

a. 172
b. 98
c. 127
d. 231

i think it's c. correct me if i'm wrong.

Could someone with number 1 and 2

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

Is the underlined participial phrase correctly placed or misplaced? i smelled each and every flower strolling through the garden. a. correctly placed participial phrase b. misplaced participial phrase