Hi hi I’m bored so ima give a out free points -_- and pls add me on snap cuz... I’m bored 13 btw

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

When you flip a biased coin the probability of getting a tail is 0.6. how many times would you expect to get tails if you flip the coin 320 times?

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.