Answer:

Step-by-step explanation:
3rd grade:
Number of girls = 16
Number of boys = 15
Total number of students = 31
4th grade:
Number of girls = 15
Number of boys = 18
Total number of students = 33
Formula for probability of an event <em>E</em> can be observed as:

Probability of picking a boy from <em>3rd grade</em>, 
Probability of picking a boy from <em>4th grade</em>, 
These are two independent events of picking a boy from 3rd grade and 4th grade.
So, probability the captain chooses 2 boys in the first pick can be found by multiplying (1) and (2) above.

Answer:
OPTION C
Step-by-step explanation:
IN OPT. A- 2 IS MULTIPLED IN EACH NO.
IN OPT.B-2 IS MULTIPLED
IN OPT.D-1 IS ADDED
IN OPT.E-2 IS ADDED
Answer:

Step-by-step explanation:
Given
Rate = 130.16 miles for 5 gallons
Required
Number of gallons used for a journey of 60 miles
The rate in miles per gallon is calculated as:

When distance = 130.16 and gallons = 5, we have:


When distance = 60 miles.
Substitute 60 for distance and 26.032 for rate in 

Cross Multiply


--- <em>approximated</em>
Answer:
Step-by-step explanation:
# angle ABC is congruent to angle DEF which’s given
# angle GHI is congruent to DEF which’s given
#angle DEF is congruent to DEF / symmetric property
# angle ABC is congruent to GHI / transitive property
(ABC+DEF=DEF+GHI)
- SUBTRACT DEF from both sides
ABC=GHI
The first question should be a Pentagon as it has 5 sides, but it should also be a regular shape.
Pentagon; Regular
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The second question shows something that obviously is not a square nor rectangle, so by process of elimination Parallelogram is your answer.
Parallelogram