What expression con you substitute in the indicated equation to solve the system below?

5x+y=8
x+4y=2
a. 2-4y for x in 5x +y=8
b. 8+5x for y in 5x+y=8
c.2+4y for x in x +4y=2
d. 5+8x for y in x+4y=2

Asquare parking lot has 6,400 square meters what is the length in meters

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?