Answer:
9(r + 8) = 9r +72
Step-by-step explanation:
9(r + 8)
9r + 72
Hope this helps!
X=first week
y=second week
z=third week
t=fourth week
18 more one 2nd week than 1st
x+18=y
x=y-18
3rd week, 4 less than 2 times as second
z=2y-4
4th week, 92
ttal=382
x+y+z+t=382
sub waht we know
x=y-18
y=y
z=2y-4
t=92
y-18+y+2y-4+92=382
conbine line terms
4y+70=382
minus 70 boht sides
4y=312
divide both sides by 4
y=78
78 customers
for equation read my answer slowly
Answer:
99 students
Step-by-step explanation:
To get this answer, you need to add all of the numbers up because the 3rd graders and 4th graders are joining the 2nd graders. 27+43=70. 70+29=99.
Answer:
C. 
Step-by-step explanation:
Consider the expression 
First, note that

Find the discriminant

Now,

Write the factored form:

Step-by-step explanation:
This is saying " Every number possible thats less than, but not 0" so you show that