I cant see. please submit another picture
Answer:

Step-by-step explanation:
Whenever we have 2 fractions equal to each other, we first cross multiply, then take variables to one side and numbers to other side and use basic algebra to solve for the variable [here, it is x].
The process is shown below:

So, x = 3/4
Answer:
2.5 hours. my bed if it wrong
Step-by-step explanation:
1. P(getting all head)=

2. Event: getting all head can happen in only one way: HHH
3. n(Sample space) can be calculated by
a. counting, a good ways to organize counting is drawing a tree diagram, CHECK THE PICTURE
or
b. There are 2 possible outcomes each time we throw the dice so 2*2*2=8 is the total number of outcomes, that is the number of the sample space.
4. So finally P(getting all head)=