How many real-number solutions does the equation have?
0=2x^2-20x+50
a) two solutions
b) one solution
c) no solutions
d) infinitely many solutions
i think it only has one solution but i just wanted to make sure.

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.

Find the nonpermissible replacement for binthis expression.b2/5b +5

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years