Answer:
3
*if you ever need to do more math like this, I suggest using desmos :)
Answer:
9
Step-by-step explanation:
f(x) = -x^2
f(3) = -3^2
f(3) = 9
Answer:
is there anything else i can use to help me? besides a bunch of icons?
Answer:
Infinitley many
Step-by-step explanation:
We know that rational numbers are numbers that are fractions and decimals.
Keep 6/15 the same and change Division sign into a multiplication sign and flip 4/21 and that will become 21/4.

126/60=21/10 and 21/10 as a mixed number is 2 1/10 so your answer is 2 1/10. Hoped I helped. :)