Answer:
G. 7600 
Step-by-step explanation:
Step 1: Deconstruct the shape
2 rectangles with dimension of 50 cm x 20 cm
2 rectangles with dimension of 40 cm x 20 cm
2 rectangles with dimension of 40 cm x 50 cm
Step 2: Find surface area of the shapes
2(50 x 20) = 2000
2(40 x 20) = 1600
2(40 x 50) = 4000
Step 3: Add the surface areas together
2000 + 1600 + 4000 = 7600
Therefore the surface area is 7600 and the answer is G.
It kind of looks like your missing something in you problem. But if f(x) = 3 is correct, then it doesn't matter what x is the answer is always going to be 3. So f(4.5) = 3. Most of the time though f(x) means a function of x, so there is an x in the problem. For example: f(x) = 3x, then f(4.5) = 3*4.5 = 13.5.
C=15+X
C being the total cost. Starting at $15 plus an additional $1 (seen as X in the equation) for each student.
Answer:
87,600 minutes
Step-by-step explanation:
Given that practice time by Jonas :
1 hour per day for 2 years :
Bradley practices : 2 hours a day more than Jonas,
How many more minutes does Bradley practice the guitar than Jonas over the course of 2 years
Number of days in a year = 365 days
2 hours per day for (2 * 365) days :
2 * (2 * 365) = 1460 hours
Recall :
60 minutes = 1 hour
(60 * 1460) = 87,600 minutes
