What is -6 - (-3)? please if somebody knows this answer tell me

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.