What are the solutions of x^2+3x-4=0

If square root x = -7, then x= -49 true or false

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.