"And" is an undetermined function here as one could ask "What is the product of 13 and 34?" (indicating multiplication), or "What is the difference of 13 and 34?" (indicating subtraction).
Since "plus" is specified and "and" is not, we can assume that "and" is not addition, or it would probably be specified as "plus" as well. We will assume that multiplication is the desired function:
13*34+7*13 would be better written to clarify order of operations as
(13*34)+(7*13), then reduced as
442+91, and solved to
533
2 + 11= 13 13 +7 = 20 20 + 14 =34 so: 2 + 11 + 7 +14 = 34
-13 + 34 = 21
7+7+20=34 7+7+20=34 7+7+20=34
7 plus 3.4 equals 10.4
34 + 43*7 = 335
5420
34
It is -34 + v.
47
7/8 + 13/24 = (7*3)/(8*3) + 13/24 = 21/24 + 13/24 = 34/24 = 17/12 or 1 5/12
34 + 61 - 64 + 18 = 13
yes it is