1. On Arbor Day, all teachers and students planted 150 seedlings, and 120 seedlings survived, with the survival rate of 120/ 150=4/5=80%.

At the end of summer, the clothing store launched a seasonal sale, and all the clothes were 30% off.

(1) The original price of a coat was 2 10 yuan, but now it's only 147 yuan.

(2) the current price of a skirt 140 yuan, the original price of 20 yuan?

(3) Mom bought an evening dress with the original price of 560 yuan, which saved 168 yuan?

(4) Mom bought a suit, saving 150 yuan. This suit cost 450 yuan?

3. The store buys 30 towels at the price of 5 yuan, and sells them at the price of 8 yuan. When the last five towels are sold out, they will get a 50% discount. Can the store finally make a profit in 70 yuan?

A car and a van leave from two places at the same time. The car traveled 30% of the whole journey, and the van traveled 22 kilometers. At this point, the two cars still have a distance of 20 kilometers to meet. The distance between Party A and Party B is (20+22)/( 1-30%) = 60km.