Please help I'll give Brainliest!!
What is the scale factor of this dilation?
(image below)
A 1/2
B 1/3
C 2
D 3

Y=4x^2+x-1 solve using quadratic formula

Can someone check if i did this correct. it’s number 4 if you’re wondering.

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .