Ellie ordered boxes of short envelopes and boxes of long envelopes for her company.
• Each box of short envelopes contains exactly
80 envelopes.
• Each box of long envelopes contains exactly
50 envelopes.
• Ellie ordered 16 boxes of envelopes.
• The 16 boxes contained 1070 envelopes in all.
What is the total number of boxes of long envelopes that
Ellie ordered?
6
b
7
с
8
d
9

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.