The Pythagorean Proposition can help you explain this:
1.5 cookies and 0.5 brownies are needed for 1 plate. In 10 plates, you will need 15 cookies and 5 brownies.
Answer: Option A -439
(s o t)(x)=s(t(x))
(s o t)(-7)=s(t(-7))
x=-7→t(-7)=3(-7)→t(-7)=-21
(s o t)(-7)=s(t(-7))=s(-21)
x=-21→s(-21)=2-(-21)^2=2-441→s(-21)=-439
(s o t)(-7)=s(t(-7))=s(-21)=-439
Answer: Option A -439
Answer:
B
Step-by-step explanation:
=3+(-7)
=3-7
As 3 is a positive number(+), it is referred as it gained yards. 7 is referred as lost yards because it's a negative number(-).
Hope this will help ya!