Alex did a scale drawing of his classroom. Using the dimensions and scale shown, determine the actual area of the classroom. 1.8 in 2.8 in 1 in = 10 ft A. 0.504 ft2

B. 5.04 ft2

C. 504 ft2

D. 5040 ft2

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).