3.12 divided by 1/2 gjfjjdkjdkd

 1.56

Step-by-step explanation:

3 divided by 2 = 1.5

0.12 divided by 2 = 0.06

1.5 + 0.06 = 1.56

the correct is answer is a 9-sided polygon!

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x