345/8 is the another one yes
Let Mia's score be

. Then, Erick scored 10 more than Mia, so his score is

. Isabelle scored 16 less than twice Mia's score, so her score is

. We can see that

is the sum of these variables, so
the expression represents the total of their scores in this scenario. Moreover, we recall that the variable in the expression,

,
represents Mia's score.To simplify this expression, we add up the variables and the numbers separately, giving us

. Therefore, in simplified form, the expression is equal to
4x - 6. The constant term
in an expression is the term not multiplied by a variable, so in this case, it is
-6.
First do 12-5, which equals 7. Next, subtract 1/10 from 2/5. 2/5 is the same as 4/10 if you multiply both the numerator and denominator by 2. 4/10-1/10=3/10. Now add 7 and 3/10. You will get 7 3/10 as the answer, which is letter C.)