Select all systems that are equivalent to this system: § 6d +4.5e = 16.5
5d + 0.5e = 4
А
6d+ 4.5e = 16.5
450 +4.50 - 4
D
60 + 4.5e = 16.5
16d+0.6e - 4.8
B
30d + 22.50
= 82.5
5d + 0.5€ = 4
E {
S 120 + 9 = 33
С
30d + 22.5e = 82.5
300+
3e = 24
F
60 +4.5e - 16.5
100+ e = 8

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3