1. Ifp=7,9 = -6, r = 10 and s=-4, calculate:

(a) p + 9

(b) p-s

(c) r-q

(d) q+52

(e) per

(f) r + 8

(g) pq+r

(h) r-qs

(1) 3r + 6q

() 59 - 3p

(k) 35-1

(1) 4q+85

the answers as follows

a) 16 b) 13 c) 16 d) 46 e) - 630 f) 18 g) - 32 h) 50 i) - 6 j) 38 l) 61

Step-by-step explanation:

a) p + 9 = 7 + 9 = 16

b) p - s = 7 - (-4) = 7 + 4 = 13

c) r - q = 10 - (-6) = 16

d) q + 52 = - 6 + 52 = 46

e) pqr = 7 X (-6) X 10 = - 630

f) r + 8 = 10 + 8 = 18

g) pq + r = 7 X (-6) + 10 = - 42 + 10 = - 32

h) r - qs = 10 - (10 X (-4)) = 10 + 40 = 50

i) 3r + 6q = 3 X 10 + 6 X (-6) = 30 - 36 = - 6

j) 59 - 3p = 59 - 3 X 7 = 59 - 21 = 38

k) check your question

l) 4q + 85 = 4 x (-6) + 85 = - 24 + 85 = 61

(a) 16

(b) 11

(c) 16

(d) 46

(e) 17

(f) 18

(g) - 32

(h) - 14

(i) - 6

(j) 38

(k) 34

(l) 61

Step-by-step explanation:

(a) p+9 = 7+9=16

(b) p-s = 7 - (-4) = 7+4=11

(c) r-q = 10 - (-6) = 10+6 = 16

(d) q+52 = - 6+52 = 46

(e) p+r = 7+10 = 17

(f) r+8 = 10+8 = 18

(g) pq+r = 7 (-6) + 10 = - 42+10 = - 32

(h) r-qs = 10-[ (-6) (-4) ] = 10 - (+24) = 10-24 = - 14

(i) 3r+6q = 3 (10) + 6 (-6) = 30-36 = - 6

(j) 59 - 3p = 59 - 3 (7) = 59-21 = 38

(k) 35-1 = 34

(l) 4q+85 = 4 (-6) + 85 = - 24+85 = 61