Answer: option c.
Step-by-step explanation:
Option a, b and d are linear equations because they are in the form of y = mx + c which is a straight line.
He had saved 320 initially
Step-by-step explanation:
Let the amount he saved be 'a'
Amount spent = 20 + 40 + 30
= 90
His grand father gave 50
At the end he has 280
280 = a - 90 +50
a = 280 -50 +90
= 320
He had saved 320 initially
Answer:
(4,−5)
Step-by-step explanation: