Question

Fill in the blanks below.(a) Latoya's test score average Increased by 8 points this semester.Write a signed number to represent this change in average.х(b) Isabel lost 70 dollars from her pocket.Write a signed number to represent this change.

Answer 1

QUESTION A

Let's assume Latoya's test score average this semester is equal to A

And that of previous semesters is

$A_0$

Hence, the required expression is

$A-A_0=8$

QUESTION B

Let's assume the total money she had in her pocket is x,

Let's assume the remaining amount with her is y

Therefore, the required expression is

$x-y=70$