Aford focus and a freight liner truck leave an intersection at the same time. the focus heads east at an average speed of 30 miles per hour, while the truck heads south at an average speed of 40 miles per hour. find an expression for their distances apart d (in miles) at the end of t hours.

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Simply 8x squared + 5(7x squared- x) - 2x =

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%