Josphina charges aflat rate for baby sitting, for 2 hour $45,for 4 hour$90 how many amount she earned for 15 hour?

What two criteria are needed for triangles to be similar

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?

Which expression is the factorization of x^2+10+21