1. at a sporting goods store, 3/10 of all the items are baseball items and 1/3 of all the items are football items. what fraction of the total number of items in the store are baseball or football items?

(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1

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!