Answer:
1344/19 =x or 70 14/19
Step-by-step explanation:
y=19x - 1,344
to find the x intercept set y = 0 and solve for x
0 = 19x - 1344
ad 1344 to each side
1344 = 19x-1344+1344
1344= 19x
divide by 19
1344/19 = 19x/19
1344/19 =x
First replace the letters with the numbers it gave so you have 3(2)(7)^2-(2)^2
multiply the 3 and 2 together to make 6(7)^2-(2)^2
do seven to the second power (7x7) so you get 6(49)-(2)^2
-(2)^2 is the same as -1(2)^2, so that can just become -2^2. so you now have 6(49)-2^2
multiply 6x49 so you have 294-2^2
do two to the second power (2x2) so you get 294-4
294-4=290
39 depending on the prices but 39 is how many he sold
(7)(-1)(-6)=42
(-7)(-6)=42
42=42
