Evaluate

b−(−18)+cb-\left(-\dfrac{1}{8}\righ t)+c

b−(−

8

1



)+c

b, minus, left parenthesis, minus, start fraction, 1, divided by, 8, end fraction, right parenthesis, plus, c

where

b=2b = 2

b=2

b, equals, 2

and

c=−74c = -\dfrac{7}{4}

c=−

4

7



c, equals, minus, start fraction, 7, divided by, 4, end fraction

.

i think it’s a i believe

we can set up an equation to find the girls' ages. the equation is         28=0.5x-5+x. (comment if you need me to explain how i got this equation.) so, you add x and 0.5x to get 1.5x and add 5 to each side. your new equation is 33=1.5x. now divide both sides of the equation by 1.5 to get 22=x. because x is mary's age, to find jasmine's age we subtract mary's age from 28. we find that mary is 22 years old and jasmine is 6 years old.