A shop sells packs of black pens, packs of red pens and packs of green pens.
There are:

3 pens in each pack of black pens
5 pens in each pack of red pens
6 pens in each pack of green pens

On Monday
number of packs sold of black, red and green pens = 7 : 2 : 4
A total of 220 were sold.

Work out the number of green pen sold. Show your working out.

hope this !

step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

i would pic false cause it goes down towards negative

step-by-step explanation:

i'm sorry i don't know

step-by-step explanation: