exam Maths Puzzle Numerical Ability

Can someone set these up for me with the formula if you can please.

Problem #1

Find the future value of each ordinary annuity, if payments are made and interest is compounded

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exam Other Question

Can I please get some help?

One card is selected at random from a standard 52-card deck of playing cards. Find the probability that the card selected is a red king. (Give solution as a fraction in lowest terms.)
i need to use the discriminant to determine the number of solutions of this quadratic equation, and whether the solutions are real or complex. i have to find the roots, but i do have to determine the number and types of solutions. x2 + 6x - 7 = 0