Leah spent the day at the mall. First, she bought four shirts for $10 each. Later, she bought two chandeliers for $60 each. After that, she
found a ten dollar bill. Also, she returned three shirts. Write the total
change to Leah's funds as an integer.

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.