Can someone pls help me

No.

Step-by-step explanation:

For figures to be similar, they must have proportional sides.

In other words, we can take a number and use it to scale all the sides.

The small rectangle has a 5 on the bottom side, while the big rectangle has a 15 on the bottom side. The scale factor is 3.

The small rectangle has a 3 on the right side, while the big rectangle has a 6 on the right side. The scale factor is 2.

As the scale factors are not equivalent, the figures are not similar.

b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2