Answer:
8
Step-by-step explanation:
3 times 8 =24
I think it’s the third or second
The triangle height = 5√3 cm
So....the area =
(1/2) base x height = (1/2) (5) (5√3) = (25/2)√3
≈ 21.7 cm
Answer:
Part a) 
Part b) 
Step-by-step explanation:
Part a)
Let
x -----> the number of weeks
y ----> the total amount Chem has deposited in a saving account
we know that
The equation of a line in slope intercept form is

where
m is the rate or slope of the linear equation
b is the y-intercept of the linear equation or initial value (value of y when the value of x is equal to zero)
In this problem we have that
The rate or slope is equal to
-----> amount deposited by Chem each week
The y-intercept or initial value is
----> amount deposited originally in the saving account
substitute the values

Part b) How much has Chem deposited 30 weeks after his initial deposit?
For x=30 weeks
substitute in the equation

