Melissa, uma, and nadia shared some sweets. Melissa and nadia took 30% of the sweets. Uma and nadia took 80% of the sweets. Melissa took 13 more sweets than nadia. How many sweets did each of them take

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters