Well range is the difference between the highest and lowest numbers so 20-7 is 13
Answer:
she can buy 6 dolls
Step-by-step explanation:
6m^2-3mn+6 is the answer.
4(x+1) is factorized completely unless you are talking about quartics
You check if it is even and that the sum of the digits is divisible by 3. That's the divisibility rule of 6.
