Suppose you survey 30 students from a population of 150 students in the 7th grade. Which statement is FALSE? a. The ratio of those sampled to those not sampled is 30 to 120.
b. One out of every five people in the population was sampled.
c. Twenty-five percent of the students in the population were sampled.
d. One-fifth of the students in the population were sampled

i need this please.

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

What is the value of x in the this question ?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?