A, $1.42. i found this answer plugging in 1.42 and seeing if it would work or not
Answer:
21
Step-by-step explanation:

Answer:
100% it is C
Step-by-step explanation:
Answer:
x = sqrt(32)
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2+ b^2 = c^2
7^2 + x^2 = 9^2
49+x^2 = 81
Subtract 49 from each side
x^2 = 81-49
x^2 =32
Take the square root of each side
sqrt(x^2) = sqrt(32)
x = sqrt(32)