If lava cools so quickly that crystals cannot form the texture of the rock will be?

If lava cools so quickly that crystals cannot form the texture then naturally, the rock will have a smooth and shiny texture to the extent of looking like a glass. Some rocks that are formed due to the quick-drying of lava are obsidian and basalt.

Answer:

9.9 years

step-by-step explanation:

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

Sorry its not enough info