Express the negations of each of these statements so that all negation symbols immediately precede predicates. a. ∃z∀y∀xt (x, y, z) b. ∃x∃yp (x, y) ∧ ∀x∀yq(x, y) c. ∃x∃y(q(x, y) ↔ q(y, x)) d. ∀y∃x∃z(t (x, y, z) ∨ q(x, y))

20335+282=20617

step-by-step explanation:

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24

thats one

step-by-step explanation: