alex and amy went out to lunch. their bill came out to 25.40 and they want to leave a 15% tip how much did they spend at the restaurant all together?

$29.41

Step-by-step explanation:

25.40 ×1.15=

1.15 means al of the 25.40 which is 100% plus 15% tip that's why I multiply by 1.15

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.