Mathswatch question on polygons and missing angles

Need to increase the numbers of customers i talk to daily by 20% how many customers do i need to talk to if i talk to a average of 8 customers per hour during an 8 hour shift

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

What is the value of the expression below? 148+(-6)| + |– 35= 7|