Answer:
diameter = 8 km
Step-by-step explanation:
the diameter is equal to 2 times the radius
diameter = 2r
diameter = 2 • (4 km)
diameter = 8 km
Answer:
$84
Ruby started with $84 before purchasing the school supplies.
Step-by-step explanation:
$32 + $4 + $18 + $30 = $84
The electruc charge is plus two as it loses electrons and gains positive charge
We know, nickel = 5 cents
& 1 dime = 10 cents,
So, money from nickel would be:= 5x
money from dime would be:= 10y
Total, money = 2000 cents ($20)
& You need to shade the area below the line for positive values of x and y.
By collecting all the datas from above, option C is your answer.
Hope this helps!