-33 = -18 + b

i also need the work for it

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

What is the measure of one interior angle of a pentagon

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?