Answer:
7x + 21
Step-by-step explanation:
7(x+3)
7x + 7(3)
7x + 21
Answer:
300 minutes
Step-by-step explanation:
25% read in =75min.
100%(mean need to finish book)=75×4=300 min
hope ur help
Add 3 standard deviations above and below the mean to get the range in which 99.7% of the data in a normal distribution will fall
6.5 + 4.5 = 11
6.5 - 4.5 = 2
So 2 to 11 ounces would be the interval
W(3t) means t= 3t
So you substitute t for 3t
Substitute
(3t)^2 +2
3 squared is 9, t squared is t squared
FINAL ANSWER
9t^2 +2