Answer:
15
Step-by-step explanation:
10% of 12 =1.2
1.2*2= 2.4 (20%)
1.2/2= 0.6 (5%)
2.4+0.6= 3
12+3= $15
Answer:


Step-by-step explanation:
In the triangle we have the following trigonometric equations:

and also:

Answer:
18
Step-by-step explanation:
18
2 * 9 = 18
9 + 9 = 18
Answer:
y= -3x+2
Step-by-step explanation:
Answer:
Noah's claim is correct
Step-by-step explanation:
B O D M A S - Brackets, Over, Division, Multiplication, Addition and Subtraction, this means that you must do the addition first.
2x+ 4x = 6x
9x - 6x = 3x
Noah is correct as the - sign tells us that you have to subtract everything after the 9x
Hope this is ok and helps a little bit