The mean height of 10 girls is 154cm. the mean height of 8 boys is 162cm. what is the mean height of the class?

158cm

Step-by-step explanation:

154+162=316

316/2=158

answer: i cant see the picture

step-by-step explanation:

can u take a better picture

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.