Theo made a donation to a charity. His grandfather agreed to add$4.00 to Theo's donation amount and then donate half of the sum. Theo's grandfather donate b$4.25
Write and solve an equation to the amount of Theo's donation.

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

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

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3