the world future society predicts that by the year 2020, airplanes will be able
to carry 1400 passengers. today's biggest jets can carry 600 passengers. what
will be the percent of increase of airplane passengers?

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.

total of apples - take away four

6-4 = 2

answer is 2 apples