Solve using systems of equations:Find two numbers whose sum is 58 and whose difference is 16

a company increased its employees from 180 to 235. what was the percent increase in employees?

30% of what number is 80.

how much pure acid should be mixed with 7 gallons of 50% acid solution in order to get an 80% solution?

the difference of triple a number and 1/2 is equal to the sum of the number and 2/3. find the number

melissa invested a sum of money at 3% annual simple interest.she invested three times that sum at 5% annual simple[..]

a number subtracted from 12 gives the quotient of 8 and -4. Find the number.

the difference of triple a number and 1/2 is equal to the sum of the number and 2/3. find the number.

a number subtracted from 12 gives the quotient of 8 and -4. find the number

the code to unlock a safety deposit box is three consecutive odd integers whose sum is 93 find the integers