IF U ANSWER BOTH OF THESE CORRECTLY ILL GOVE BRIANLIST!

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.

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4