To work on muscular strength, you should use a heavier weights and decrease repetitions b heavier weights and increase repetitions c lighter weights and decrease repetitions d lighter weights and increase repetitions its for fitness its for fitness

A

Explanation:

The answer said below is wrong! Just letting you know- that is endurance. Heavier weights make the muscles work. More repetitions are for endurance so even though I think it is A it could be B. Most probably A.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.

answer; they systematic design, collection, interpretation and reporting of information to marketers solve specific marketing problems or take advantage of market opportunities;