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martin is 6 years younger than his sister. the sum of their ages is no more than 22 years.

enter an inequality that can be used to represent this situation in the first box, where x represents martin's sister's age.

enter the oldest age martin's sister can be in the second box.

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

have a nice day!