Not necessarily. You could have done your multiplication wrong. Or in some cases, yes, you could have to use another skill. For example, you can't solve an optimization problem with addition, you need some calculus skills under your belt.
Answer:
answer varies on duration of trip
Step-by-step explanation:
it depends how long your trip is
Answer: 150
Step-by-step explanation: a scale of 150 because 150 times 8 is 1,200.
That question mark is filled in with the y-intercept. The y-intercept is where the graph goes through the y-axis. Our graph goes through the y-axis at 1, so the equation is y = 4x + 1