Answer:
The answer is she sold 20 labradorite crytals and 3 galena crystals.
Step-by-step explanation:
First you times 20 x 20 and get 400 and then times 13 x 3 and get 39 and 400 plus 39 equals $439.
Answer:
°
Step-by-step explanation:
The angle shown in the figure is known as an external angle.
Also, <u>in a regular polygon (like the regular octagon) the sum of all the exterior angles is the same regardless of the number of sides of the figure</u>:
°
And to find the measure of a single external angle (such as the angle
shown in the figure) we must <u>divide 360 ° by the number of sides n:</u>

and for the regular octagon, since it has 8 sides:

so the value of x is:
°
the measure of angle x is 45° which is the second option
(-5, 2 ) means x = -5 and y = 2
so answer is <span>point D</span>
So you can multiply 65 by 15% or .15 and get 9.75
Subtract that from 65 and get $55.25 as the sales price
Answer:81 people
Step-by-step explanation:
If you subtract 2500 by 50 then divide by 30 it come out to 81.66 repeat