In city x four hundred people were asked if they used umbrellas frequently. in city y four hundred people were asked the same question. what total percent should be listed in the column of people who said yes?
a- 38%
b-45%
c-55%
d-90%
see attachement below.
also, i do know that the answer cannot be but i still do need ..

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit