A company sells phone cases for $15 each. At the end of the week, they have sold $570 worth of phone cases. How many phone cases did they sell? Write and solve an equation to find the answer. a. What is the equation that represents this problem?
b. How many phone cases did they sell?

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100

How do i do this activity, is appreciated