Answer:
x = 3(6 + y)/2
Step-by-step explanation:
Solving for x
Add 3y to both sides.
2x = 18 + 3y
Divide both sides by 2.
x = 18 + 3y/2
Factor out the common term 3.
x = 3(6 + y)/2
Answer:
9
Step-by-step explanation:
Multiply the number of sizes by flavors, the by toppings.
3*3*1
Answer:
12 and 12.5
Step-by-step explanation:
Cos α = sin (90-α) so cos 19 = sin 90-19 = sin 71