Hay 16 mesas en el comedor escolar. en cada mesa caben 22 estudiantes sentados. cuantos estudiantes pueden sentarse a almorzar en el comedor al mismo tiempo?

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"