What is the value of the expression? 4(6/10 - 1/5) + 0.4 enter your answer in simplest form.

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9