PLEASE HELP ME I NEED THE HELP VERY BAD I WANNA PASS

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?