Find a ratio that compares the relative sizes of the quantities. (Use the same units of measurement for both quantities. Write the ratio as a fraction in simplest form.) 3 hours to 70 minutes

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?