Write and solve an equation to determine how many degrees the temperature t fell. the temperature at 5 p. m. is 20∘ 20 ∘ f. the temperature at 10 p. m. is −5∘ − 5 ∘ f.

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!