^ if you're talking universally, no it would be cm. But no one really says "quarter inches". You would just say inches
4b-3 .. you use distributive property and multiply 3*b-1 then you have 7b-3b-3 then you combine like terms and subtract 3b from 7b and get 4b-3
-4^3
a^3 r^2
Just add all the letters\numbers and the exponent will be how many of the numbers there are
Step-by-step explanation:
2x+10=86+x
2x-x=86-10
x=76
I hope you understood :)