Solve for t in the scientific formula d=rt

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

Ateacher asked his students to vote for an animal to be their class pet. five-eighteenths of the students voted for a rabbit, voted for a snake, and voted for a hamster. which statement is true? more students voted for a hamster than a snake. more students voted for a snake than a rabbit. more students voted for a rabbit than a hamster. more students voted for a snake than a hamster.

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .