Ms. lieber takes 4 hours to drive 210 miles from her home to yosemite national park . if miss lieber's average speed for the first two hours is 60 miles per hour, find her average speed for the last 2 hours

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext