" the sum " means add
the sum of 8 and a number...
8 + n <== ur expression
Answer:
The direction angle of vector v is equal to 
Step-by-step explanation:
Let

The vector v is given by




Remember that
The direction angle of the vector is equal to

substitute the values


21.00 you would take and fine the how much 40 percent of 35 is then subtract it so 35*40/100=14 35-14=21
Answer: 40
Step-by-step explanation:
I think the answer is 2 weeks 6 days because if over the course of 2 weeks they took 12 I ready quizzes the he needs 18 quizzes and it leaves 1 day extra