Eight male and eight female college students who have credit cards were surveyed and asked their total credit card debt. the responses are given below in dollars: males 1000 2100 900 1200 1300 500 1400 700 females 1300 500 2000 1800 1300 1000 2600 1400
is this an observational study or a designed experiment?

Use the multiplier method to incrases £258 by 43%

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

Suppose that the function f is defined. , for all real numbers, as follows. _ \ 1/4x² -4 if x≠ -2 f(x)=< /_-1 if x=-2 find f(-5), f(-2), and f(4)