Each week, Tim wants to increase the number of sit-ups he does daily by 2 sit-ups. The first week, he does 15 sit-ups each day.

Write a function in the form f(n)=mn+b to represent the number of sit-ups, f(n), Tim does daily in week n.
A. f(n)=2n+13
B. f(n)=2n+15
C. f(n)=n^2+15
D. f(n)=2n^2+15

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!

sorry but i cant draw that