PLEASE ANSWER ASAP Using the following equation, find the center and radius:

x2 + 2x + y2 + 4y = 20

The center is located at (1, 2), and the radius is 25.
The center is located at (−1, 2), and the radius is 25.
The center is located at (−1, −2), and the radius is 5.
The center is located at (1, 2), and the radius is 5.

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

Anyone know? will mark brainliest if you're correct!