What is the solution to the system of equations graphed below? y = x + 3
X
5
y= 3x + 1
5
y = x + 3
y = 3x + 1

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

We just started the introduction into circles and i have no idea how to do this.