I'll help but information is missing, you need to have the cost and the number of pencil she will buy
Answer:
Step-by-step explanation:
28 = 2 * 2 * 7
35 = 5 * 7
The common factor is 7 . This is the GCF
28 + 35 = 7(4 + 5) (answer)
Answer:
√2, pi.
Step-by-step explanation:
An irrational number cannot be written as a fraction a/b where a and b are integers ( not = 0)..
A decimal in the wrong place can change the value of a number completely for example
0.5 can be converted to 50 cents or 1/2 but if you change the decimal 0.05 converts to 5% or 1/20.