4. The Social Justice Club is raising money to help build a school in Kenya. They are selling wristbands and buttons at lunch. They charge $3.00 per wristband and $1.50 per button.
(a) Write an algebraic expression for the total funds raised. Define variables and
include let statements.
(b) Find the total funds raised, if they sold 73 wristbands and 47 buttons.
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An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e. g. 98.7654). x f(x) 0 1 2 3

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x