Which of the following expressions are equivalent to x + y-z Choose all answers that apply:
A.) z+y+x
B.) x+z+y
C.) none of the above
Please help I only have like 2 more to get a 100%!

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 area of the trapezoid shown ?

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?