Find the lower bound for the following weights a) i have completed this one = 16.35
b) i don’t know this one

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?