Two lighthouses flash their lights every 20 seconds and 30 seconds respectively. Given that they flash together at 8 p. m, when will they next flash together?

Round to 1 SF 0.00401

At a local ballpark the team charges $5 for each ticket and experts to make $1,300 in concessions. The team must pay its players $1,800 and pay all the other workers $1,500. Each fan gets a free bat that costs the team $3 per bat.

What shape has four congruent sides with a 60 degree angle

Subtract. Put answer in standard form. (2x^4-x^2+5x-2) - (-x^4+3x^3+2x^2-1)

How to convert 3.248 repeating decimal with 48 repeating into a simplified fraction

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.