1.60 g of magnesium tetraosulphate(VI) crystals produced from 0.23 g of magnesium oxide, and contain 0.80 g of water of crystallization. Calculate i. the mass of crystals expected to be obtained from 0.50 g of magnesium oxide,
(ii) the mass of water of crystallization it will contain.

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

What is the range? can’t seem to find it out