Answer:
=5a+7b
Step-by-step explanation:
Expand: 5(a + 2b): 5a + 10b
=5a+10b-3b
<em>Add similar elements: 10b-3b=7b
</em>=5a +7b
9 down 3 rt 4 rt 8 up 4 rt 5 down 8 down 9 (= 50)
Answer is A
X-3/x^2-4 has two excluded values 2, -2
Answer:
9. 168
10.

Step-by-step explanation:
on the picture
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Answer:
5 meters and 1 cm
Step-by-step explanation:
well their are 100 cm in 1 meter
so add 2m and 3 cm to 2 m and 98 cm
to get 4 m and 101 cm what is 5 meters and 1 cm