The perimeter of a shape is its length+width+length+width, or 2L+2W :).
So, in order to find the perimeter of Teresa's math book, she can add 2(28)+2(21).
Hope I helped! :)
Answer:
Negative of 5 exists
It continues in the left part of a number line...
Hence the answer is false it does exist
Answer:
391=a*248
Step-by-step explanation:
315/5 = x/9....315 miles to 5 hrs = x miles to 9 hrs
cross multiply
(5)(x) = (315)(9)
5x = 2835
x = 2835/5
x = 567
He will drive 567 miles in 9 hrs
There are no numbers with an A between 1-100