There are 20 students at lunch. One-fifth of the student are in the hall. How many people are in the hall

What the answer 2*2+2•2+2-2*2 = ?

Find the number of possible outcomes if 12 quarters 4 dimes and 1 nickel are tossed

A triangle with base 1 m and height 3 m is submerged vertically in water so that the tip is even with the surface. Express the hydrostatic force against one side of the plate as an integral and evaluate it.

A jewelry store received a package of rings that is 1 in long, 10 in wide, and 12 in high. The package contains 1 in cubes that each hold one ring how many rings did the jewerly store receive? explain your answer

Translate the phrase into a variable expression. Use the letter d to name the variable. If necessary use the asterisk for multiplication and the slash for division The numbers of dollars Paul owes plus 16 ...

Francis has 6 chocolate bars. he gives one to John and one to Chester. he keeps the rest for him. what fraction of the chocolate bars did he give away?

To estimate the number of people in Springfield, population 10,000, who have a swimming pool in their backyard, 250 people were interviewed. Of those, 115 had a swimming pool.

Lee put $10,000 into a stock market index mutual fund that grew at an average of 7% per year for 10 years. About how much is in Lee's mutual fund account after 10 years? Ignore compounding.

How many, and what type of, solutions does 6x^2 - 2X + 7 = 0 have? 1 rational solution 2 no real solutions 2 rational solutions 2 irrational solutions

Alice worked for six hours and earned $29.88. How much did she make per hour? A) $4.30 B) $4.98 C) $5.15 D) $179.28