What is the simplified expression for 3 a squared + 9 a b + 5 minus 4 a squared minus 4 a b + 3?

Negative a squared + 5 a b + 8

Negative a squared minus 13 a b + 5 + 3

a squared + 5 a b + 8

What's the number for 2 hundreds 15 tens and 6 ones

What is 75% of 200?

77/10 as a mixed number

Ten people board an airplane that has 12 aisle seats. In how many ways can they be seated if they all select aisle seats

A group of people pay $720 for admission tickets to an amusement park. The price of an adult ticket is $15 and a child ticket is $8. There are 25 more adults than children. How many children are in the group.

A cookie recipe calls for 3 eggs for every 2 dozen cookies. How many eggs will be needed for 60 dozen cookies? How many cookies can be made with 12 eggs

A factory produced 150 tons of steel in one year. The next year, the output increased to 180 tons. What is the percentage increase in the output?

If y varies directlt with x, and y=12 when x=15, what is the value of x when y=16

What is the y-intercept of y = 1 + 6x?

A class of 20 music student say they play instruments 8 play guitar and 9 play piano how many people play both