Three out of every 10 students in Mr. Chan's class brings their lunch to school. Write this ratio as a percent

One angle measures 41 degrees. What is it's complement

Simplify sec (t) cos (t) to a single trig function.

Kim owes her friend $245 and plans to pay $35 per week. write an equation of the function that shows the amount kim owes after x weeks. then find and intercept the intercepts of the function.

A resturant owner buys 9 bolts and 9 bolts cost 7.65. she wants to add 8 more bolts. how much do 8 bolts cost

Is the radicand in 350 a perfect square

An airplane travels 2004 km against the wind in 3 hours and 2544 km with the wind in the same amount of time. What is the rate of the plane in still air and what is the rate of the wind in km/h?

Find the center of the circle whose equation is x2 - 10x + y2 - 10y = - 1.

The area of a rectangle is 18 square centimeters. the length is twice the width. what is the width of the rectangle? 3cm 2cm 6cm 9cm

It costs a lumberyard $2.05 per cubic foot of lumber. If they sell the lumber back to their customers for $21.

How many atoms are in 115 grams of calcium