A purse contains $3.90 made up of dimes and quarters. If there are 21 coins in all, how many dimes and how many quarters were there?

A merging traffic sign is an example of a ... sign

What the diffence between the side of the DNA double helix and the teeth of the DNA double helix?

Which of the following is a type of safety system to protect employees from risks such as cave-ins? A. All of the answers are correct B. Benching C. Shield D. Shoring E. Sloping

There are ___ questions in the English section of the aspire test A. 75 B. 25 C. 10 D. 50

Ive Based on the passage, which of the following is most likely to contribute to South America's HPI ranking?

Why is it important that the cells dna is duplicated before cell division the subject is science it didnt have science as a subject

What hloaday is in January

You are visisting a mountain in the northwest part of United States the mountain has steep sides and is not part of a mountain range a crater can be seen at the top of the mountain hypotheses about what type of mountain you are visiting

Rupert is copying some files from his computer to a compact disc, like the one shown above. If the diameter of the compact disc is 120 millimeters, what is the approximate area ignoring the center hole? Use = 3.14.

A baseball player hits a ball straight up at 20 m/s. ignore any horizontal component of velocity the ball may have. how ling does the ball take to reach its maximum height?