Answer:
slope: 5x/3 and y-intercept: 1
Let a and b represent the heights of the corresponding buildings (in meters).
... a = b +271 . . . . . . . a is 271 meters taller than b
... 2b -a = 211 . . . . . . if a is subtracted from twice b, the result is 211
Use the expression for a in the first equation to substitute for a in the second.
... 2b - (b+271) = 211
... b = 482 . . . . . . . . . . . simplify and add 271
... a = b +271 = 753
Building a is 753 meters tall; building b is 482 meters tall.
Kilobyte = 2^10 bytes
gigabyte = 2^30 bytes
terabyte is the product of a kilobyte and a gigabyte....so we multiply
2^10 * 2^30 = 2^(10 + 30) = 2^40 <== a terabyte
** exponent rule : a^b * a^c = a^(b + c)
42 (1- 25/100) = 63/2 = 31.5 dollars
answer is $31.50
hope it helps
