Lago Enriquillo, Dominican Republic is at 151 ft below sea level. The highest mountain in the Dominican Republic is Pico Duarte at 10,164 ft above sea level. What is the elevation difference between these two locations? 10013 10000 10315 10164

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

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42