Answer: 
Step-by-step explanation:
Given
Luis used 590 gm of flour each day
If he continues to use it for 3 weeks
A week has 7 days; so 3 weeks have 21 days
The flour used in 21 days

Thus,
of flour is used in 3 weeks
Answer:
i need the answer too
Step-by-step explanation:
Answer:
77.5 = 12.5t
6.2 mins.
Step-by-step explanation:
The scuba diver was at the sea bed from where the water surface is at 77.5 m height. The ascending speed of the diver is 12.5 m/minute.
a. If the diver take t minutes to reach the water surface, then the equation that models the situation is
77.5 = 12.5t ......(1)
b. If we consider the sea bed as a reference level i.e. zero height, then the sea surface will be at 77.5 m height.
Therefore, in that case, it is reasonable to write the distance 77.5 m as a positive number.
c. Solving the equation (1), we get, t = 6.2 minutes.
So, the diver will take 6.2 mins to reach the surface. (Answer)
The secret number has a 7 in the ones place. The tens number is an odd number?
This number is 79. Hope I helped.
Answer:
B) y = x + 2
Step-by-step explanation:
Coordinates of point C =
Coordinates of point D=
To find the equation of segment CD
Formula : 
Substitute the values in the formula :

y-12=x-6
y=x+6
When two lines are perpendicular to each other the product of their slopes is -1
Let the slope of perpendicular line be x
So, -1 \times x = -1
So, x =1
General equation : y = mx+c
So, Option B has slope = 1
So,the equation of the line that's a perpendicular bisector of the segment connecting C (6, –12) and D (10, –8) is y = x + 2