30% of x = 60
60/.30 = x
18 = 30% of 60
On the added picture you can see that graphs of functions

and

have two points of intersection. The x-coordinates of these points are the solutions of the equation

.
Hence, the approximate solutions are x=-1.9 and x=1.6.
Answer:
We have to reject the null hypothesis because the t-value is greater than the critical value .
Step-by-step explanation:
Can you maybe take another screenshot I can’t see what it says.
Answer:
x=-2
Step-by-step explanation: