David and 3 friends played laser tag one afternoon. They each paid an equipment fee of $7 and an hourly rate of $3.50.
Their total bill was $105.
David represented this situation using the equation:
22.22x + ) = 222
Use the equation to determine how many hours David and his friends played laser tag?

Lindsay is creating a bridge out of dried pasta and glue. in her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1 centimeter increments.which function did lindsay use to create her design? f(x) = (x – 5)2 + 8 f(x) = –(x + 5)2 + 8 f(x) = 0.5(x + 5)2 + 8 f(x) = –0.5(x – 5)2 + 8

Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c