Mary deposited $5,000 into an account that earns 5½% compound interest, compounded annually. Alan deposited the same amount in an account that earns a simple interest rate of 6%. After 10 years of growth, whose account earns more interest and by how much. How do I solve this and what's the answer?

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!