How do you write 4+2×3 with an exponent of 2 in parentheses?

Nnnnneeedd 1.find the residual if you know the actual number is 5.2 and the predicted value is 4.8

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.

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)