What is the missing number
0.6 × = 0.18

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Indicate the formula for the following conditions: p^c(n, r)=

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position