Which of the following expressions shows the number of 8 character passwords that can be formed using letters and digits if the password must begin with a letter? a.
21 times 36 superscript 7
b.
26 times 36 superscript 7
c.
26 superscript 5 baseline times 10 superscript 3
d.
36 superscript 8

Please select the best answer from the choices provided

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answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.

c. 1,233 miles

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.