Answer:
the answer is c :)
Step-by-step explanation:
For 1.30 you will shade in one full grid because that equals 1 and also shade in 3 coloms on the next grid which equals .30.
Then shade in 5 coloms and 1 single block on the the next grid which will equal .51 after
The answers to the questions
The sum is the total of the given values being added.
Given the expressions above, to add them, you just have to add the numbers with the same terms. 13x2 and 8x2 have the same terms which is x2, therefore, you can add both and the result is 21x^2 then just copy 5x so the sum would be 21x2 + 5x. Hope this answer helps.
