Answer:
First one equals -15
Second one equals -3
Step-by-step explanation:
(-4)*2 - 7
= (-8) - 7
= (-15)
(-4) + 1
= (-3)
Hopefully this helps.
The first set of expressions bc 3x is equivalent to 3x and -7y is equivalent to -7y
Do you still have time Bc if so use this 2 times pie times 5
We can do this by the tree method. What I've done here is to divide each factor by prime numbers until we have only prime numbers left. For example the second level of the tree from the top has 350 and 2. This is because 750 = 2*350. the next level has 175 and 2 because 350 = 2*175.
At the end we are left with the prime factors and find that 700 = 7*5*5*2*2
Answer:

Step-by-step explanation:
I think you have the situation shown in the diagram below.
1. Calculate the value of n

2. Calculate the value of YZ
