Answer:
C is the correct answer
Step-by-step explanation:
Answer:

Step-by-step explanation:
convert mixed number to improper fractions
3
=

apply the fraction rule:

multiply the numbers

Answer:
A
Step-by-step explanation:
89x1230x780=85386600
Answer:
130 degrees
Step-by-step explanation:
arc CA is 50 since the angle is 50 and then you would subtract from 180 since it is half the circle which leaves you with C, or 130 degrees.
Answer:
The first option is correct.
Step-by-step explanation:
how do we multiply x - 9 by something? we put it in brackets
(x - 9) × (-3) = 51
that can be written like this
(x - 9)(-3) - 51