1.) in a class of 45 students , 80% received a’s on a math test . how many students received an a?

2.) mary spent 15 dollars. if this was 20% of her earnings, how much money did she earn ?

Step-by-step explanation:

1) 45 times 0.8 (which is equivalent to 80 percent) is 36 students.

2) 15 divided by 0.2 is 75, so she earned 75 dollars

good luck on your studies! : )

david edward.

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: