1. The two trapezoids below are similar. What is the length of EF?
24 cm
B
G
7.5 cm
H
X
E
D
30 cm

Can someone check if i did this correct. it’s number 4 if you’re wondering.

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

Yahir designs bracelets. he uses between 9 and 15 red and yellow beads in the ratio of 2 red bead to 5 yellow beads. drag the beads into the container to meet these requirements