Answer:
2x + 3 = 9
Step-by-step explanation:
Three more than twice a number is nine
Twice a number would be 2x
where x is the number
Three more would be + 3
And is means equal sign or “=“
I’m pretty sure it’s 370 bc
1 and a half hours is 80+40 (40 is half of 80)
and 2 and a half hours, so 100 for each hour.
100+100+50= 250
250+120=370!!
answer : 370 kilometers per hour
X^2 and 2x^2 are alike.
They both have variables and the same exponent
Answer:

Step-by-step explanation:
12 divided by 5= 2.4
OR
2 2/5
Hope this helps! :)