OK
The first one would be
8.34625
The second one would be
22.89104
H0P3 It H3LPS :)
Step-by-step explanation:

Answer:
Down Below .
Step-by-step explanation:
A. Nickel and Copper.
B. The average temp is 1034.8575. I got that by adding all the temps then dividing it by 4
29.75/8.5=x/4.5
using the "butterfly method"
8.5x=133.875
/8.5 /8.5
x=15.75
You have to make a proportion
Triangle B can be proven congruent