Fred's fish tank is shown below. How many cubic feet of water will he need to fill his fish tank? a) 514.6 ft3 b) 5727 ft3 612.5 ft3 6ft d) 664.3 ft3 8.3ft​

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

I’m really confused and need to learn this

Which of the following is the maximum value of the equation y=-x^2+2x+5 a. 5 b. 6 c. 2. d. 1