(x + 3) ( x + 1 )
because 3 x 1 = 3 and 3 + 1 = 4 , which gives you 4x.
Answer:
45
Step-by-step explanation: 15x3
Answer: 2
Two is the only even number that is prime!
Sure you could as long as you have the point.
for example let's say the slope is 2 and the point we are given is (4,4)
we know that:

plug in the values given
x=4
y=4
m=2

b, the y intercept equals -4.
so:

in this case
It seems you double the amount each day. keep doing that until you get to 15