1)
a. 4
b. 9
c. -7
d. -23
2)
a. F
b. F
c. T
d. F
3)
a. 100 -66 =34
b. 78 x 3 = 234
c. 36 + 24 = 60
d. 4 x 17 x 3 = 204
21)
a. -9 + (-12)
= - 9 - 12
= - 21
b. -17 + (3)
= -17 + 3
= - 14
c. 24 + ( -11 )
= 24 - 11
= 13
d. - 15 + (-10)
= - 15 - 10
= - 25
e. - 63 + ( -42) + 8
= - 63 - 42 + 8
= - 97
f. 101 + ( -11 ) + ( -100 )
= 101 -11 - 100
= - 10

Radius of the circle "
" = 9 in.

The circumference of the circle.



We know that,


Therefore, the circumference of the circle is 56.52 in.

Answer:
i dont know the answer im in nursery
Step-by-step explanation:
52°C is equal to 125.6 degrees Fahrenheit.
Given that 52°C it should be converted into degrees of Fahrenheit.
The celcius is represented by the letter C
And the degree Fahrenheit is represented by F
The formulas for the conversion are given by 
and 
Here the given is 52°C and we convert this to Fahrenheit by using the formula 
We have a C value is 52
By substituting the C value in the formula we get the F value

Hence 52°C to degrees Fahrenheit is 125.6
Learn more about the conversion of C to Fahrenheit and to Fahrenheit to c here
brainly.com/question/25677592
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1st problem:
A = 630 cm
2nd problem:
A = 104 cm
All I can see on the picture you provided.