For questions 1-5 estimate the sum or difference.

1. 9/10 + 7/8
a) 1
b)2
c)0

2. 9/50 + 7/15
a)0
b) 1/2
c) 1

3. 2/8/9 - 2/1/7

a) 2
b) 1
c) 0

4. 8/12/31 + 4/5/6

a) 13
b) 12/1/2
c) 14

5. 15/2/15 - 15/1/20

a)2
b) 1
c) 0

1. what is the measure of ∠abc? what is the measure of ∠abd?

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

Sketch one cycle if the cosine function y=2cos2theta