6. The length of the hypotenuse of a right triangle is 15 m. The length of one leg is 9 m. Find the length of the other leg. Round to the nearest tenth.

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

I’m stuck on this equation, anyone got the answer?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry