The frequency table shows the results of a survey about favorite exhibits.

Exhibit Frequency
Butterfly 12
Dinosaurs 25
Planets 17
Trains 6

Find the relative frequency that a randomly selected student's favorite exhibit was either butterflies or trains as a percent.

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

sounds & other waves originate from any vibrating object