Which expression is already in its simplified form? a.) 3t+ (s +t)
b.) 6h + 2(h+ 3k)
c.) 5m + 7mn + 4n
d.) 8 + y3 - 5z2 + 2y3

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?

Adeposit of 5500 at 6% for 3 years equals

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?