PLEASE HELP
Evan and Iris tossed a coin 40 times and got heads 19 times. What is the experimental probability of tossing a head using Evan and Iris's results?
A. 19/59
B. 21/59
C. 19/40
D. 21/40

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Someone answer asap for ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Solve the triangle. a = 21°, c = 105°, c = 5