Find the GCF of 45, 90, 75: which is 15
So he can make 15 stones total.
Divide each of the color numbers by 15 to get the number of tiles he uses in each stone
Gimme a sec, i need more time
4+x=18, the sum would make it an addition problem and x would represent "a number".
Answer:
10
Step-by-step explanation:
8+5+15+12+10= 50 / 5 = 10
Answer:

Step-by-step explanation:
From the diagram which I have drawn and attached below:

Next, in the triangle, the sum of the three interior angles:

The value of angle x is 35 degrees.