Will mark brainlist

-2 2/3 + -3 3/4 =

-6 2/7 + 3 1/14 =

-12 + 4 3/5 =

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?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)