Describe two different strategies you could use to add 4 addends

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a