Ricki is working a part-time job this summer. the table shows how many hours she worked each day during her first week. Monday: 4 hours
Tuesday: 0 hours
Wednesday: 5 hours
Thursday: 5 hours
Friday: 0 hours
Saturday: 3 hours
Sunday: 3 hours
This week is representative of how many hours ricki will work each week during the summer. If she earns $9 per hour and there are 12 weeks during her summer, what will ricki’s gross earnings be? Explain your reasoning

In the diagram below, dab and dac are adjacent angles. if mdac = 25°, what is mdab in degrees? what is mbac in degrees?

Use the graph of the sine function y=2sinθ shown below

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?