Can someone help with numbers 1 and 2 for both of them tell me the answer and how you get it please I need the two of them

At his new job, jeremiah can choose an hourly rate of $9 plus a $50 weekly bonus for opening the store, or an hourly rate of $10 per hour with no opening bonus. the equations model his salary options. y = 9x + 50 y = 10x

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?