Elena plays the piano for 30 minutes each practice day. The total number of minutes p that Elena practiced last week is a function of n, the number of practice days.

What is the domain for this function?
What is the range of this function?

Step-by-step explanation:

f(n)=30n

domain all real numbers

range all real numbers

I think.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

answer:   (s+1)(s+4)

step-by-step explanation:

factor s2+5s+4

s2+5s+4

=(s+1)(s+4)