I’m so confused on how it get the answers

So, you just fill in so for number 1 you will take f(x) = x^2, and every where there is an x, you replace with a -5 so it would be f(-5) = -5^2 which is 25. Same with the others like number 2, take g(x) = x+5 and replace x  with -12, g(-12)= -12+5, which would be -7.

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.