Answer:
( - x )( + x )
Step-by-step explanation:
Using the difference of squares
a² - b² = (a - b)(a + b) , then
7 - x²
= ( )² - x²
= ( - x)( + x)
Answer:
2:3
Step-by-step explanation:
for every 2 girls there is 3 boys so the ratio is 2:3
Answer:
25
Step-by-step explanation:
you would do the total which is 45-20
12/100
x/8400
cross multiply to get 100x = 100800
x = $1008 commission