An architect measures a beam to be 96.55 centimeters long, with an accuracy of plus or minus 0.02 centimeter. Which equation can be used to find the limits of the actual length of the beam?

Which number line shows the solution to the inequality

Dino has $1,000 in a savings account that was started for him when he was born. He has a part-time job where he earns $60 each week, and he puts $20 of that into his account each week. An equation could be used to model the amount in his account, y, after x weeks.

Which statements are true about a graph of the equation that will show his account balance during a year? Check all that apply. Select ALL that apply.

Mark can take the city bus to school, or he can ride his bicycle. One bus ride costs him $1.75. He can bring his lunch to school or buy it there. Buying lunch in school costs $2.50. He tries to spend no more than $30 on these options each month. Let x represent the number of lunches that Mark buys in school. Let y represent the number of bus rides that he takes.

Which inequality represents all ordered pairs (x, y) that are possible options for Mark?

The graph shows this system of inequalities, with their shaded solution region.

Which ordered pairs satisfy all three inequalities? Check ALL that apply.