Answer:
3 cans
Step-by-step explanation:
A = lw
a = 20 x 8 = 160
a = 40 x 8 = 320 
Together this is 480 
I would need 3 cans.
Answer:
28-7x
Step-by-step explanation:
To write the expression without grouping symbols, multiply the 7 into both terms using the distributive property.
7*4 - 7^x
28-7x
Complete Question
The complete question is shown on the first uploaded image
Answer:
Option A is correct
Step-by-step explanation:
From the question we are told that
The 95% confidence interval of the mean score of all New Jersey third graders is (58.957 , 63.043)
The sample size is n = 184
The sample average is 
The standard deviation is 
The 90% confidence interval for the difference in mean score between lowa and New Jersey is (-6.33 , -1.67 )
The p-value is 
Generally given that the p-values is very low compared to the level of significance (100 -90 = 10% = 0.10 ) we can reject the null hypothesis which is usually a claim that the means of the population are the same )
Hence the population means are different .
I gotta go help you man here