In the morning, the temperature outside was 0°f. by noon, the temperature had decresed 5°f. by 3: 00 the temperature had decreased another 3°f. what increase in temperature is needed to return to the original temperature of 0°f.

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

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

Simplify 24÷(-2)(3)+7 a. -29 b. 3 c. 11