Harold is placing a mat of width w+4 around a 16 in. by 20. portrait. If Dan expression for the perimeter of the outer edge of the mat

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

hi there!

question 1 answer: p/q can be terminating when q = 5^m * 2^n

question 2 answer: -1 and -1

question 3 answer: -4

question 4 answer: 5/12

hope this : )