Answer:
1: something because you didn't give another number. For example, 1:2 is 1 golf ball to 2 golf tees. A ratio is one thing comparing to another. Hope this helps! I learned this in 6th grade. Brainly if so!
Step-by-step explanation:
The correct answer is b as she starts with 10 and keeps on added 3 dollars per week
X^2=3^2+7^2-*3*7cos52
x=6.083
7^2=3^2+6.08^2-2*3*6.08cosy
solving for y
y=94.71
The answer is 0.04444... or 2/45. Whichever is more useful to you.