Calculate the mean of the set of boys and girls below: boys 21, 18, 20, 16, 16, 22, 28, 24, 26

girls 13, 16, 15, 14, 15, 19, 22, 26, 12

A-boys: 21.22 girls: 16.89

b-boys, 21 girls, 15

c-boys 18.5 girls 17

d-boys 18.5 girls 15

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

Simplify -4z+2y-y+-18z a.-22z+y b.-14z+2 c.3y+22z d.y +14z

Which rule describes the composition of transformations that maps ajkl to aj"k"l"? ro. 900 o to, -2(x, y) to, -20 ro, 900(x, y) ro, 9000 t-2. o(x,y) t-2, 00 ro, 900(x, y)