Write and evaluate the expression. then, check all that apply. eight increased by a number; evaluate when n = 5.3 first, write an expression. the correct expression is n + 8. the correct expression is 8n. second, substitute 5.3 for the variable, n. third, simplify by adding 5.3 and 8. third, simplify by multiplying 5.3 and 8. the answer is 42.4. the answer is 13.3.

first one because it can't have a fraction in it

step-by-step explanation:

hello,

as   long as they add up to 180 its correct.

part a: triangles gcb and epb

part b. sides cg and rp are parallel by definition of parallelogram.

angles cgb and e are congruent by being alternate interior angles of parallel lines cut by a transversal. angles gbc and ebp are congruent because they are vertical angles. by aa similarity, the triangles are similar.

part c. since the triangles are similar, the ratios of the lengths of corresponding sides are equal.

calculation of be:

gb/be = cb/bp

(400 ft)/be = 300/200

(400 ft)/be = 3/2

3be = 2 * 400 ft

3be = 800 ft

be = 800/3 ft

calculation of pe:

gc/pe = cb/bp

(350 ft)/pe = 300/200

(350 ft)/pe = 3/2

3pe = 2 * 350 ft

3pe = 700 ft

pe = 700/3 ft