Grade 8 math 8 i need these math questions and answers checked over to see if they are correct. if not give me the correct answers.

Given: ac and db are diameters. m∠3=

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have