PLEASE HELP Select the correct answer.
Consider the given solids with the dimensions shown. Which solids are similar?
Figure 1
Figure 2
Figure 3
16 m
18 m
64 m
9 m
12 m
36 m
12 m
16 m
48 m
Figures not drawn to scale
OA. only figure 1 and figure 2
OB. only figure 2 and figure 3
Oc. only figure 1 and figure 3
OD.
all three figures
OE.
none of the figures

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?