X represents the number of minutes.
y represents the price of the bill.
Plan A
y = 25.75+0.75x
Plan B
y= 20.99+x
Plan A is better when it is more than 19 minutes.
Plan B is better when it is less than 19 minutes.
120/4 = 30 So the average cost of a lamp is $30
Answer:
0.125 in decimal in fraction 1/8
Step-by-step explanation: your welcome
Answer:
first is not a function, second is and third isn't.
Number of boys = (7 /(7+3))*50 =( 7 / 10 )*50 = 7*5 = 35
so there are 35 boys in the class