Answer:
Step-by-step explanation:
15x, because 2 × 4x= 8x and -1×-7=7x...add 8x and 7x ull get the answer
<span>Horace is running a race. he begins to wonder how fast he is running.
</span>km/h will best describe how fast he is running.
Step-by-step explanation:
What equation are you talking about