Answer:
-6
Step-by-step explanation:
substitute
(2 + 3) -11
5 - 11
-6
Remember

means

so
assuming that when no base is stated, the base is 10
y=logx means

answer is A
Answer:
84
Step-by-step explanation:
5/2 for every 2.5 skiers one snowboarder rides
[A] 2.5 skiers to one snowboarder
[B] 
210=2.5*x divide both sides by 2.5
x=84
[C] 84 snowboarders rode at the same time as 210 skiers
Answer:
A
Step-by-step explanation:
Answer: OPTION C.
Step-by-step explanation:
For this exercise it is important to remember the following:

Knowing this and based on the information provided in the exercise, you can make the conversion from kilograms to ounces. This is:

According to the exercise, Miriam's procedure was:

So you can identify that she made a mistake.
Notice that:
1. Miriaim multiplied correctly.
2. Butt the third fraction should be
and not
.