Can someone help me with these two questions ASAP please? I would really appreciate it

Question

1. The scores on an economics examination are normally distributed with a mean of 76 and a standard deviation of 12. If the instructor assigns a grade of A to 14% of the class, what is the lowest score a student may have and still obtain an A? (Round your answer to two decimal places.)
2. According to the data released by the Chamber of Commerce of a certain city, the weekly wages of factory workers are normally distributed with a mean of $750 and standard deviation of $60. Find the probability that a worker selected at random from the city makes the following weekly wage. (Round your answers to four decimal places.)

(a) more than $948

 

(b) between $690 and $930

Answer 1

mean =76

sd=12

for top 14% what grade is needed

use z tables

z=1.08 = (x-76)/12

x=76+12(1.08)= 88.96