0.5b> -6 or 3b+16< -8+b solve compound inequality

Assume that a population of 50 individuals has the following numbers of genotypes for a gene with two alleles, b and b: bb = 30, bb = 10, and bb = 10. calculate the frequencies of the two alleles in the population’s gene pool.

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry