138 x ? = 75
? = 75/138 = 0.544(3sf)
so about 54.35% (2dp) decrease
You would half to take 8×(8×pi r squared)
Answer:
5/10 20/28
Step-by-step explanation:
i think only these.. hope this helps..
1)
36/3 x 42/3 = 12yd x 14yd
12×14=168
you will need 168 square yards to recarpet the kindergarten.
2)
168×24.99=4198.32
it will cost $4198.32 to recarpet the kindergarten.
3)
3.5 is 35% of 10
4198.32÷3.5=1198.52
they will need to sell 1199 coupon books to completely pay for the the recarpeting.