Simplify 2a2b3(4a2 + 3ab2 – ab) = ?
a. 8a4b3 + 6a3b5 + 2a3b4
b. 8a4b3 + 6a3b5 – 2a3b4
c. 8a4b5 + 3a3b5 + 2a3b4
d. 8a4b5 + 3a3b5 – 2a3b4
find the value of x in the equation 2 x + 20 = 15 + 3 x .
a. –5
b. 16
c. 25
d. 1

Given (1+cosx)/(sinx) + (sinx)/(1+cosx) =4, find a numerical value of one trigonometric function of x. a. tanx=2 b. sinx=2 c. tanx=1/2 d. sinx=1/2

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

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.