This is a 30.91837% decrease, so approximately a 31% decrease from 98 to 67.7.
1.
d = rt
13 = r*3
r = 13/3
2.
v = r + at
a = (v-r)/t
Answer:
option-A
option-D
Step-by-step explanation:
We are given a complex number as

we know that whenever we have

where
a is the real number
b is imaginary number
now, we can verify each statement
option-A:
we can see that
a=7
and
a is the real number
so, 7 will be real number
so, this is TRUE
option-B:
we know that

so, imaginary number is 
while it is mentioned square root 3 is the imaginary part of the number
so, this is FALSE
option-C:
We can see that coefficient of i is b
and

so, this is FALSE
option-D:
we know that
'a' and 'b' are sum of real and imaginary number
so, this is TRUE
Answer:
Step-by-step explanation:
Store A price is 20x-7
store B price is 4(5x+7)
Where x represents the number of items.
Now, observe that the coefficient of both expressions is 20, because 4(5x+7)=20x+7
Remember that the coefficient of the x-variable is always the constant rate of change. Also, the given expressions can be expressed as linear functions
y=20x-7
y=20x+28
Observe that both Stores have already the same rate, which is 20.
Therefore, they have the same rate at any number of items dry cleaned.
What they have different is their initial condition, -7 and +7 respectively, but the rate is the same..
Answer:
Do a full picture ok then someone can answer