Plz help , due in 40 mins 1st and 2nd half
score=45 and 30
weight=a and b
the weighted mean score is 38. Find a:b.

Someone me what is the area of this figure? 18m 18m 8m 16m

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?