Answer:
I'd say multiply the numerators then the denominators and at the end simplify at least thats how I multiply fractions :)
They are the same because 14 is 2*7 and 21 is 3*7.
Answer:
The answer is C, 220 units.
Answer:
80 degrees
Step-by-step explanation:
Do 90 plus 10.
The do 180 minus 100
because a triangle adds up to 180
