A) what is the class size? b) which age group has the least number of participants?
c) how many participants have age less than 25 years?
d) what percentage of participants have age more than or equal to 30 but less than 40 years?

A. 21

B. The age group that are 40

c. 2 participants

D. 33.3% ?

Step-by-step explanation:

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: