They both get their cars washed on every 60th day.
You can solve this equation by finding the lcm (least common multiple):
15 30 45 60 75 90 105
20 40 60 80 100
The lowest common multiple is 60 as it is the first multiple the two have in common.
So, in sixty days, they’ll both get their car washed again
Answer:
QS EQUAL TO IS ?
Step-by-step explanation:
In a ΔPQR, ∠Q = 90 , PQ = 5 cm, QR = 12cm. If QS is the altitude then QS is equal to?
Answer:
30 meters per second
Step-by-step explanation:

The hypothenuse is the opposite side of the right angle
so that means that in this triangle the hypotenuse is 7
♂️♂️ -15 a parallel, clarify your question