A radioactive atom decays at a rate of 35% each day. If the original weight of the atom is 7500 milligrams, how much will it weigh after 10 days?

The emergency exit map for the youth center came back from the printer, but it's too big for the frame. the map needs to be half its current dimensions. If the current map is 1 in:10 ft, what should the scale of the new map be?

A key code must contain 4 letters and 3 numbers. The letters may be any letter of the alphabet. The numbers should be any number from 0 to 9. How many different key code combinations are there? A. 456,976,000 B. 292,484,000 C. 6,824,000 D.

Alexandra has a home-based business putting on children's parties. She charges $20 to design the party and then $10.00 per child. Write a function rule that relates the total cost of the party to the number of children n.

14 rounded to the nearest tenth

What percent of 287.5 is 46

The three steps shown below were used to find an expression equivalent to 2/5 (15x - 30y) + 10x step 1:? step 2: 16x - 12y step 3: 4 (4x - 3y) which expression could be used as step 1?

Which graph has a slope of 2/3

At an art exhibition there are 12 paintings of which 10 are original. A visitor selects a painting at random and before decides to buy he asks the opinion of an expert about the authenticity of the painting.

14 boys and 11 girls. What is percent of girls

Mary has walked 8 km, which is 55% of the total distance she will walk. How much farther does Mary need to walk?