1.75 - .40 is 1.35 so 1.35 divided by .15 is 9 do she ran the track 9 times
<h3>C</h3>
its C because graph A it goes though the axis
You can use a simultaneous equation - x + 7y=24 minus x-9y= -24 you end up with 16y = 48
Divide 48 by 16 and you get 3 is equal to y. Now put three into an equation eg, x + 21 = 24 it is now obvious that x = 3 as well as y = 3
Answer:
D
Step-by-step explanation: