Jay received a $34 gift card for a local coffee shop. Every day he spends $2 for a cup of coffee. Write and equation that models the balance of his gift card, Y. as a function of time in day, x.

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.