Answer:
This is an geometric sequence because the common ratio is -2.
Step-by-step explanation:
-2*-2=4
4*-2=-8
-8*-2=16
So, as we are seeing that the common ratio is -2, so this is an geometric sequence.
F(x)= 5.50n +45
5.50 per child with every child being n just means 5.50×n or 5.50n. 45 being added to the equation as it is the starting point of the total party cost.
Answer:
Fraction of the students in the 7th grade class carry a cell phone = 3/5
24 students carry a cell phone
Step-by-step explanation:
40 students in the 7th grade, 60% of the students carry a cell phone.
so 40 x 0.6 = 24 students carry a cell phone
24/40 = 3/5