Answer:
1a: f(-2) means substituting -2 for x
1b: 65
I don't know the second one
Answer:
25+24= 49coins 49÷2.5 is 19.5 so there are 19.5 dimes in the bag I believe
Answer:
125 cm
Step-by-step explanation:

all cube has the same length, width, height
5 * 5 * 5 = 125
Hope this helps
Answer:
11 = x
Step-by-step explanation:
The given angles are alternate interior angles so they have same measurement
66 = 6x divide both sides by 6
11 = x
X = 68
Since the angle opposite of it is a right angle, we know that 22 + x has to equal 90 also.
So just take 90 - 22 = 68 degrees