The answer would be 89.90558242
If u round it off, the answer will be 90
Answer:
y=4x and x+4y=12 are perpendicular because they have opposite reciprocal slopes
Step-by-step explanation:
y=4x slope is 4
x+4y=12 slope is -1/4
Answer: $84
Step-by-step explanation: 48/4=12 12x7=84