What is the first step solving 6(3x7)=2

Asap 25 pts + brainliest to right/best answer

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

How many days was the temperature above 90 degrees?