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240 plants 126 square meter area 10000 square meter area

A model rocket is launched with an initial upward velocity of 164/fts. The rocket's height h (in feet) after t seconds is given by the following.   h = 164t - 16tÂ²   Find...

Imagine a grassy hill with wild sunflowers growing on it. Every day, the number of sunflowers doubles. After 64 days, the hill is completely covered in sunflowers. How many days did it take for the...

It takes 7 machines 7 minutes to fabricate 7 pieces of aluminum. How long does it take 140 machines to fabricate 140 pieces of aluminum?

Jessica knows Swahili and Farsi, Judith knows Italian and Polish, Jane knows Dutch and Swahili, and Ariana knows Farsi and Italian. If Swahili is easier than Farsi, Polish is harder than Italian,...

If some of Tucson's residents have brown eyes and some of Tucson's residents are women, is the statement "Some of Tucson's residents are brown-eyed women" true, false, or unsubstantiated...

Our schools want to send brochures advertising our program to different kinds of parents. How many brochures do we need to reach all people using the following statistics on parents? * 10 scientists;...

Car A and Car B get on the freeway at the same time and the same point. They are traveling at different speeds, but each car is maintaining its own consistent speed. After a few minutes, Car A is...

If Jessica's weekly income doubles, she would be making \$500 more a week than Sesame. Jessica's weekly income is \$700 more than one half of Phibi's. Phibi makes \$1800 a week. How much does Sesame...

At a local electronic store, CDs were on sale. Some were priced at 14\$ and some were priced at 12\$. Sabrina bought 9 CDs and spent a total of 114\$. How many CDs did she purchase?

Sequence of transformation for   4x^2+(y-1)^2=1

Scientists think that so far, most (maybe about 75%) of the history of life on Earth has involved only single-celled creatures. True or False?