Hello, Can somebody help me with this math problem? Thanks A football team has four chances with the ball to gain ten yards and keep going to try to make the touchdown. A team gained 7 yards, lost 2 gained 4, and lost 1.
A. How many total yards did the team move (forward or backwards)?
B. Did they gain enough to keep the ball? Explain your reasoning.

Your vet has placed your pet on a diet. the diet is to contain at least 12 mg of fat and at least 14 mg of protein per serving. these requirements are to be obtained from two food sources. source a contains 2 mg of fat and 2 mg of protein per serving. source b contains 1 mg of fat and 3 mg of protein per serving. if source a sells for $1.28 per serving and source b sells for $1.12 per serving, how many servings of each type should be purchased to satisfy the requirements at minimal cost?