Solve for 4x-3=-89 please!!

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled