Apenny weighs 2.5 grams while a dime weighs about 2.27 grams. how much do two pennies and two dimes weigh

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

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?

What is the value of f(x) = 2.2 for f(-2)?