Verify the identities by working down one side of the identity or the other, or both sides of the identity. PLEASE HELP ME I NEED THIS TEST DONE QUICKLY

Charles is on a 8 1/2 mile bike ride. he stops for a rest after he’s gone 5 2/5 miles. how much farther does he still have to go?

Lassify the function as linear or quadratic and identify the quadratic, linear, and constant terms. f(x) = (3x + 2)(−6x − 3) linear function; linear term: −21x; constant term: −6 linear function; linear term: −18x2; constant term: −6 quadratic function; quadratic term: 6x2; linear term: 24x; constant term: −6 quadratic function; quadratic term: −18x2; linear term: −21x; constant term: −6

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers