math
posted by jocelyn .
janice scored 85% on the last test. she answered 34 questions correctly. how many questions were on the test?

0.85x = 34

thank you. can you please check this for me:
henri rici paid $5000 for a car. after one year, its value had decreased by $1500. by what percent had the car depreciated in value? is it 5000x=1500? 
Be sure to multiply your decimal answer by 100 to find the percent.

ok, 30% right?

Yes. 30% is right.

Miriam answered 34 questions correctly on her test. If she got 85% correct, how many questions were on the test?