The sum of six and four times d is the same as d minus nine

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Which of the following expressions is equal to 2x^2+8