Hope this helps!! Solved it step by step:)
Answer:
40% of the class is Girls, so 12 students are girls
Step-by-step explanation:
add up the ratio
2+3=5
divide by 5
30/5=6
multipy ratio to find totial number of students
2*6=12
2*3=18
divide the number of students to get the pecentage
12/30=0.4=40%
18/30=0.6=60%
Answer:

Step-by-step explanation:
Given
The attached graph
Required
Determine the line equation
First, list out two points from the graph


Next, calculate the slope (m)




The equation in slope intercept form is:

This gives:


Open bracket

Answer:
C. 0.038 km² > 3.8 m² > 380 cm² > 3800 mm²
Step-by-step explanation:
Convert every measurement to the same unit, say, square metres.
(a) 3.8 m²
No conversion necessary
(b) 380 cm²

(c) 0.038 km²

(d) 3800 mm²

In decreasing order, 0.038 km² > 3.8 m² > 380 cm² > 3800 mm²