Answer:
15
Step-by-step explanation:
Red : Blue :
3 8
We have 40 blue marbles
Multiply 8 by what to get 40
40/8 =5
So we need to multiply by 5
Red : Blue :
3*5 8*5
15 40
There are 15 red marbles
The skateboard is $47.20 with the 20% off sale. You can find this price by multiplying both 0.20 and 59.
90°, because angle m<1 is 90.