Dana ordered a set of beads. of the beads she received, 3 were purple and 7 were a different color. what percentage of the beads were purple?

-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!