Mardi recibió una herencia de $60,000. Invirtió una parte al 8% y depositó el resto en bonos
libres de impuestos al 12%. Su ingreso anual
total de las inversiones fue de $6000. Encuentre
la cantidad invertida al 8%.
A) $29,000
B) $30,000
C) $54,000
D) $15,000

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)