At the local tech school, there are 4 math classes and each dass has 25 students. The school pays for the book and calculator for each student. Each book costs $46.70 and each calculator costs $55.60. What is the total cost the school will pay?

10230

Step-by-step explanation:

The cost of a book and a calculator is

46.70+55.60 = 102.30

There are 4 classes with 25 students

4 * 25 = 100

take 100 * 102.30 = 10230

angle addition postulate

2x=56

step-by-step explanation:

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47