Answer:
55
Step-by-step explanation:
its subtracting 15 each time
55 and the pattern is 15... i think
20
x = price
y = number of keyboard
xy = 540
(x-2)(y+3) = 540
x = 540/y
==> x = 20
==> y = 27
hundred thousand, ten thousand, thousand, hundreds, tens, and ones
your answer is 170 but if its round to the nearest probably pick 200
