0< x < 180, and sin 42 = cos x, what is the value of x?

Item 8 an account earns simple interest. $700 at 8% for 6 years a. find the interest earned. $ b. find the balance of the account. $

Look at attachment. has all info needed. need

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers