If she saves 2$ everyday and there are 7 days in a week, all you would need to do is multiply 2 X 7
she saves 14$ in one week
If you divide 37 by 40 it should give you a decimal that you can turn into a percentage
such as 37/40 = .925= %93 or %92 if you are rounding to the nearest whole number
Let's remember that the coefficient in an algebraic expression is always the number that multiplies the variable. Now, in this case we have that the third term is -2x, then:
the coefficient of the third term would be -2
19 is the second one and 20 is the first one
10% of 50 is 5 dollars up, so will be $55.
