What is What is 80% of 100? HELP PLEASE

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

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6