What is |–16|?

a.
16

b.
4

c.
–4

d.
–16

Solve for x, y, and z. show all steps.

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?